In what regard?
I've had one for years. Back when I could see well, I simply used iron sights. Now it wears glass and a very expensive ($340) scope base and rings ($120). Cheaper can be had, but they shoot like you'd expect.
Too heavy to hunt with, though that was never what I intended to do with it. I play with it on the KD range.
Good magazines are expensive. Again, there are cheaper magazines available. I made the mistake of buying two different versions of cheep magazine and both have feeding problems. Stick with the $50+ GI/Springfield Armory magazines.
Otherwise....
Very reliable, very accurate (mine's got a match barrel, trigger, and sights - obviously the sights don't make a difference anymore).