My K.I.C.A.S / Caliente arrived today, I've spent the past few hours listening to it. I wish I could offer more a comparative evaluation but other than a cheap Bravo hybrid amp that I got on ebay I haven't tried anything else yet with the K701.
In short, I find the detailed reviews by some of the other forum members (Skylab) to be right on the money when they describe the sound. It sounds great, very clean and balanced. Bass is stellar with the K701s, I mean really stellar delivery, tight, deep - but never boomy or overpowering. The mids and highs are also outstanding, very rich and detailed, well-presented. I listened to a variety of (better recording quality) stuff, all in ALAC from my PC (Foobar), piped into a Gamma2 DAC via optical, and then in to the K.I.C.A.S. My impression is that I could probably spend hours listening to this without fatigue, it is so clean and natural sounding.
My only observation, which could be considered negative, was that I was almost able to put the volume at 100% without it getting unbearably loud. While it certainly drives the K701s well, it doesn't seem to have a lot of juice to spare. This has been commented on in previous threads, and was specifically observed when paired with K701s. It was sufficiently loud enough for me, though, and stayed smooth all the way up to full volume, but this did surprise me and is worth mentioning. I think it is just loud enough, but for some, additional room to go on the volume knob might be desired.
I am very, very happy with this amp. I feel that it was a bargain for the price, too. I'd highly recommend it.