Infidel? / Castro! is an interesting listen, though not something I can listen to with any regularity. It more of a soundscape than music, with all sorts of interesting noises mixed together to make music. I appreciate the talent involved, but as I said, it isn't an easy listen.
Dysrhythmia is one of my favorite bands and No Interference is their best release, IMO. Quite technical, jazzy hard rock/metal. If you like instrumental trios with tons of chops and a flair for writing great music, then look no further.
Of course, maybe you wanted the opinion of the person who got them, but that's my opinion on them.