For the uses you describe it should be fine. I have one of these little guys and use it when I travel with my laptop. It does a pretty fair room thing on omni. An unexpected issue came up for me when I wanted to record two different ins simultaneously; if this is going to be a need you might want to make sure your host can handle a USB mic input simultaneously with whatever other kind of input you're going to use.
Soundwise, it's not too shabby for the price, but probably nothing you'd want to record monster serious tracks with. As you note, you also get three different flavors, so that's a nice thing. The little guy must be made of lead; it weighs a ton and depending on the capsules might outlast everything else in that price range except maybe a 57. I use it on the road when I have ideas I want to flesh out that require multiple tracks; it's fast and pretty convenient for that.
But otherwise I just use a handheld digital recorder, which I find much faster and more convenient.
Cheers.
