I owned a Springfield M1A standard for a while, and had maybe 500 rounds through it. Honestly I enjoyed the maintenance, I had the ratcheting chamber brush and a 30 Cal boresnake. I would let solvent do most of the work while I cleaned the rest of the gun and then pull the boresnake a few times. Cleaning the Piston was easy enough, but I didn't like having to break out a wrench to do it.
Accuracy was phenomenal. With 168 GMM I felt like I was holding a scalpel, and that I could pick the exact part of the target I wanted to hit. My best 5 shot group with that ammo was about 2" at 200 yards, and it was all in the X-ring. I shot very little steel ammo from it, and mostly used whatever surplus ball I could find. Granted, I cleaned that rifle fanatically, I never experienced a bobble or malfunction. I also only used checkmate mags on mine, and the factory 10 round mag.
I regret trading off that rifle.