When you think about it, the Pod is sort of like Invasion Of The Amp Snatchers - It looks like your wife or husband, until you catch it humping the wall socket. Actually, I think of the Pod as a tub of "I Can't Believe It's Not Butter." Put it on bread and it tastes fine - but A/B it against real butter, and then you taste the difference. Also, it doesn't have the same consistency or nutritional makeup. However, it does have chemicals you won't find in butter. If you're on a diet, it's a great way to scramble eggs or have a butter-like flavor on your food. But here's the thing - You won't find world-class gourmet chefs, French or otherwise, cooking with it. Nor would you be happy if you went to Le Cirque, paid the big bucks for a dinner and found that the chef had used I Can't Believe It's Not Butter in the cream sauce for your chicken. And while you can argue that a good chef can make it taste good, the obvious answers are: 1. It would be a struggle for that chef to use it and get the flavor he is accustomed to (and no self-respecting chef would do it) 2. If you can't tell the difference, forget Le Cirque, save your money and head down Lex and walk the 7-1/2 blocks to McDonalds.
To me, a Pod is a good tool for demoing and the occasional textural flavor, but it reminds me of MIDI samples. By themselves, they sound great. For example, a one-shot snare sounds fine by itself. Now, try doing a roll with that one sample and you get the ever popular machine gun effect - same attack regardless of volume. Our ear picks this up immediately and tells us something is up. Now, take an amp model, which has a snapshot of a tube going into distortion at extreme overdrive level, and a snapshot of tube distortion at a "clean" level. The model superimposes either snapshot throughout a range of levels, whereas tube distortion would increase or decrease with a continuous rate of change based the guitarist's expression. As such, an amp model going into distortion functions like a MIDI sample with the same frequency and overtone information regardless of level - sort of "machine-gun distortion," if you will.
The other issue I see with models, along with a static snapshot being superimposed over a sound, is the lack of frequency information one might need to EQ and control the sound creatively in context of a mix. The Pod sound springs forth as a fully formed clone and doesn't get a chance to grow up in context of the recording as it evolves. Another analogy would be like trying to shrink a picture of an adult down to various sizes, and with use of Photoshop to try to give you a growth sequence of pictures from baby through early childhood to pre-teens to teenage, young adult, and etc. The only one that will convince you is the adult picture by itself. Or, using the analogy of color, like handing an artist a specific bright blue and telling her to use this blue in a near-complete painting without mixing other colors with it in order to blend with the overall tone of the painting. In other words, adjust the entire painting to one color that's close, but no cigar. The same holds true for the Pod; you're taking a model of an amp and effects that was made totally out of context in an isolated circumstance - optimized for model-making and not necessarily music-making - and expecting all other instruments recorded with different equipment in a different room with a different engineer to fit perfectly into a recording because the sample happens to say it was modeled from a Marshall. Unfortunately, thanks to modern digital technology, something can now walk like a duck, quack like a duck, and still not be a duck.
If I may speak for RCM, and BC, I think this is what they're talking about: The Pod preset that may sound just fine on its own, forces you to adjust all other elements in a mix to it, rather than giving you enough frequency information for you to tell it what to do to fit in with its playmates. Keep in mind that their ear (RCM & BC) is going to work towards getting the Pod to respond in a mix in a way that is consistent with the quality and audio cues they are accustomed to when making a record with world-class artists and gear - or in essence, make the Pod do what it is not capable of due to certain inherent limitations. Does this make the Pod evil? No. (Unless it takes over your hot girlfriend who then dumps you for the wall socket.) Does this impugn their mixing skills? Absolutely not. However, if it forces them to spend countless hours to produce a product that is less that what they are capable of by their own standards (which is a crucial point here), then they shouldn't be asked to do so (Unless it's U2). Recall that people pay for their ear, their taste. If the Pod forces them to perform below the standards they've set for themselves, then it's not a wise choice to work with it. Again, not for lack of ability - the imperfection is the Pod's. Ask Da Vinci to fingerpaint you a Mona Lisa and see how far you get. (You'll need a time machine - mine's in the shop).
Basically, the Pod is what it is - a great and affordable way for a guy or guyette who can't afford Michael Wagener's amp and cab collection to delude themselves into thinking they don't need it. (Okay, that was a bit offsides.) What I should have said there, is that the Pod is for the guys and guyettes that don't mind a little "I Can't Believe It's Not Bogner" on their songs, and for that it's just fine. I'm also sure that if Mr. Wagener wanted to put out an album with nothing but the Pod in order to fool people - or had to use nothing but a Pod to make a record (obviously at gunpoint) I'm sure he could. However, would he, and would it be worth the effort and extra hours to do so? And, at the end of the day, would it sound as good as the records he made with miked amps? I think we know the answer to that.
Dude, try some of this I Can't Believe It's Not Bogner on your scrambled Eggnators - it rocks!
And that's all I have to say about that.
-B-