I've handled a few and they just didn't feel right to me. Not necessarily cheap but middle of the row. I have a Saiga, Zastava, and some other AK type platforms that are much higher quality but they are also a bit more expensive. Had a friend have QC issues that caused him to send it back a couple of times and then he got rid of it due to the hassle. I hang out in other forums and have seen posts on various AK forums about reliability/QC issues. Lastly, US made AK's don't hold their value as much.
All that said, that is just my particular opinion on PSA AKs in rifle calibers. The price is more than reasonable and I've heard plenty of happy people with their PSA AK. I have been considering an AKV after handling one. That product feels a lot better to me and I've heard nothing but good things about that particular build.