I own a Coda S100 amplifier. I actually bought it for my wife's system. I found a good deal on the used S100 while I was auditioning a pair of big Parasound Halo monoblocks, (JC-1's?). After listening to all of the amps, I sent the Halos back to the dealer, put the S100 in my system, and bought my wife another used Coda amp.
The S100 is the first solid state amp I've owned that didn't make me feel like I was trading the musicality of tube gear for more power and control. The S100 is simply the best amp I've ever heard, and I've heard some "jewelry" class units. The only caveat I'd give the big Coda amps is that you are cheating yourself unless you put them on dedicated electrical circuits, especially the Class A amps. They need an ample supply of A/C power if you push them. Give them what they need, and you will be rewarded with wonderful sound.
Strengths: (1)build quality, (2)great sound, and (3)good factory support.
Weaknesses: (1)Not much dealer support that I know of, which is a pain if you are on the East Coast. (Fortunately, Coda gear is very reliable.) (2)Some of the larger Coda amps weigh over 100 pounds. Have a friend handy, if you need to move one.