I think you described it quite well. 311's are a good way to start off in the world of doubles and the 20 gauge looks and handles better than its larger siblings IMO. Personally, I'd avoid the latter ones with the plasticky tenite stocks. I do remember having to constantly tighten up the drawbolt, so a good long screwdriver would be handy.

The .410 version is about the ugliest gun ever made. Sorry, but I had to say that.