I received my FM50 + Clator about two months ago. I mounted it in a Gabkits 1x12 cab (great cabs btw) with a Warehouse ET65. The FM50 is a fantastic amp that, IMO, sounds great without a Clator. FYI...the FM50 is not a straight copy of the Ojai/Ford amp; it has been modded a bit to be a bit warmer so, contrary to what some of the other members of this board say, the Clator isn't required. However, with the Clator, the FM50 is incredible...
Anyway, I don't think you'll be disappointed. Just make sure to read the manual thoroughly, learn how the controls interact, and play with them...a lot. This amp is mind-bogglingly versatile and takes time to get to know. Also, give it time to break-in...the components need time (~60 - 80 hours) to fully break-in, so if the amp sounds a bit stiff/sterile to you at first, give it time. AND...play with different varieties of tubes; currently, I have the stock set in, but I swapped in/out a bunch of different sets and it does change the character slightly.
Oh...I guess I should mention that although I've built five different kit amps, I had this one pre-built. Reason? Just too busy, a little lazy, and more than a little impatient.
Anyway, welcome...and ENJOY!!!