I got myself an Invader 100 about a week ago, and yes, it is one of the best amps I have ever played through. Very versatile, 4channels with separate EQ's, different modes, two master volumes, two FX loops.
I still do prefer my Triple Rectifier over the Invader, but the Invader comes very close. I made a couple of clips to compare the two amps.
http://www.soundclick.com/tomir
Sorry guys, only one track at center and no drums
Just to point out some differences.
The settings were quite similar:
Recto: red channel, bass 11o'clock, mid10o'clock,treble11o'clock
Invader: channel3, bass12o'clock, mid11o'clock, treble1o'clock
The same stuff was used as well: Schecter Hellraiser C7, Ibanez TS9, Mesa Rectifier 4X12", SM57, Focusrite Saffire PRO