I have a Stevens 512... it is not bad. I got a 612 for $400 (SxS) but it had issues so I shipped it back to Savage and got a pigeon grade 512 back! The 612 is discontinued.
It shoots well, has really crisp triggers and seems fine. It probably won't hold up to high volume shooting but that's not a huge issue with me. I wish it had ejectors and not extractors but so did the 612 and I bought it anyway. For $400, it is a good gun... not a browning though.