If you like the gun, and if it has the barrel length you want that is a better than fair price. If it includes all 3 choke tubes. Those sell for about $400 new, anything under $300 is a good price used, assuming it has all the accessories. Choke tubes can get pricey and if it only comes with the one in the gun wouldn't be nearly as good a deal.
I've tried very hard to like those guns. I've owned a couple and love all the features. Until I start carrying it in the field and shooting it. Not something I can easily explain, but they just don't work for me.