I've got the Ciener kit (the higher-end model with the adjustable sights). It's currently sitting on a Springfield GI, and makes for a fun plinker with very reasonable accuracy. My biggest complaint is that it's a bit picky about ammo. Federal Lightning and CCI Mini-mag are both a no-go; it does work extremely well with the Aguila SSS 62gr subsonic. My second-biggest complaint is that the magazines don't hold, like, 50 rounds each, because with 10 rounds the fun is over much too quickly (I see now that Ciener is offering 15-rounds mags). People that get a bit picky will note that this setup balances a bit oddly; with a full-length steel grip frame, it's got some heft, but none of it is up front since the slide is aluminum and the steel barrel weighs about nothing. On an aluminum lower end, it yields a very light gun that balances better, but I've found that it doesn't cycle well on Kimber aluminum grip frames.
The bottom line is that it's a lot of fun to shoot and provides great training for those that use 1911s for self-defense. It builds muscle memory of the motions required to operate a 1911, and when loaded with lower-quality cartridges, it actually provides some practical malfunction-clearing practice. I also like the fact that it all of my 1911 holsters can be used.