I am a Hawks fan and he is a little overrated as a pure cover guy. Browner was one of my favorite players. Very good tackler/blocker and can play physical with anyone. The guy generates turnovers.
He can get toasted by a good route runner assuming he didn't just toss the WR like a rag doll to the ground or completely off his path.
My issues with Browner is his brain. The guy was caught using Adderall in 2012, suspended and was under the very close scrutiny of drug tests that follows, yet he STILL hit the cheebie in a year that his team had a good chance to make it to the Super Bowl. This in a contract year. I would not doubt it if he did it again.
He also fits perfectly in the Seahawks system, I am not convinced at all that he would be anywhere nearly as effective on another team. He should come very cheap though and can really do some damage to the bigger receivers and TEs. The dude is very long and gets his hands on the ball. It helps when Sherman is in the other side I am sure.
A coach like BB could reign him in and get production out of him if they actually made a small deal.