recoil is similar to a short bbl'd AR.
Its louder than my 10.5" BBL'd AR with a KX3.
Accuracy is good.
I also found the mag changes clumsy - mainly because of the mag release. The mag release is at the bottom of the gun, just forward of the mag, and needs to be pushed up. There is a dust boot that is supposed to keep dirt out - but also holds the mag tighly. You basically need to grab the mag while pushing up to activate the release with the knuckle of your index finger, then pull the mag out.
I'd rather a mag release that would allow you to drop the mag with one hand while reaching for a fresh mag with the other.
AE 62gr FMJ fed fine... The cheap non-crimped winchester white box #### did not.
Edited to add:
If I had the money I would choose the PE90 over the FS2000.