I own a mesa 2/90 power amp and i love this amp when you hit it hard with my ENGL 580 preamp or some distortion pedal.
I also own 4 bogner amps and they are great if you like that tone which
is big,fat and harmonically saturated.
I never liked the Mesa heads they are too dark sounding for me but that sounds good to others....You have to hear them both side by side really.
The Bogners are easy to mix they sit well in a mix...