I quite enjoy mine. Once I got it home I did the following:
1. Changed the flash hider,
2. Changed the pistol grip (I hate A2 grips)
3. Changed out the front sight pin from that square thing to a thin round one
4. lengthened the butt stock by about 2.5 inches
5. Manufactured a sling swivel from an old 30mm scope ring (Steal) by cutting off the ring part, filing the base flat, drilling and tapping and putting in a sling swivel stud. Took about 45 minutes so its the most expensive sling adapter in the world at about $ 60.00 but its mine and I like it!
Rifle hurt my trigger finger during the suggested "Break in" period of 200 rounds or so but once I turned down the gas system it didn't slap my trigger finger any more.
The trigger on the new ones is far better, smoother, crisper and with a lighter let off, but I've gotton used to mine now. The Ambi safety on the new ones if a nice touch and I really like the bolt release, it makes loading a smooth operation. I would like a ambi mag release, being left handed that would just be easier. I haven't cleaned it since I aquired it, fired about 500 rounds so far no hicups or stopages of any kind.
Scott