They may have straightened the Solo out now, but that had major feeding problems with them in the beginning. I believe now they still require Speer premium ammo. It's in the manual that comes with it, if I remember correctly it should only use 115 grain bullets, I will double check now.
I just found this on the first try,
Viewed in that light, an FTF isn’t a mere inconvenience; it’s an invitation to a funeral. An unreliable self defense pistol is a liability of monstrous proportions. Jumpy yet? Making things worse, Kimber inadvertently contributed to the rumor mill by demanding the exclusive use of “premium” ammunition to feed this silvery sweetheart. For the uninitiated, premium means “really effing expensive,” which implies that the Solo is a delicate little pistol that cheap range ammo would somehow damage.
Found here:
http://www.thetruthaboutguns.com/2011/12/ralph/gun-review-kimber-solo-carry/
It's a good review, this from the same article
I’ve fired a bunch of tiny-nineys and they are all just a bit snappy. Naturally, some are snappier than others. The little Solo was quite snappy. Not as snappy as a Louisiana swamp turtle, but snappy nonetheless. Although the gun didn’t try to hop out of my hand as fast as my monthly income, muzzle flip was prodigious and not easily controlled.
The guy actually liked the gun, but thought it was overpriced, and the amom thing bothered him
Also from the 1911 forum, you may be interested in what owners said there, also positive for the most part, the thread covers 2 years of owners experiences.
http://forums.1911forum.com/showthread.php?t=352213