Scratch, I am just like you! I just set aside my 21 year old Mossberg 500 pump to use as an "ugly gun". It has worked well enough over the years, but cannot compare to the Berretta in any way. In fact, the Berretta 390 cannot be compared directly with the 391 either.
The 391 uses a re-designed gas system that is claimed to be more reliable and reduces recoil by 20% over the already soft shooting 390. After putting 75 rounds through the gun in about an hour I can tell you I believe it! It is the lightest recoiling shotgun I have ever used.
The Berretta also comes with thick and thin recoil pads and an assortment of psacers you can use to fit the stock length, cast-on or -off and drop to fit you like a custom gun.
If you are not into pretty, get the basic field model, it is still a good looking gun, but don't let the desire for a basic gun make you buy something you'll regret. $700+ seem like a lot of money up front, but look at it the way I did:
If you would spend $500 on a Remington or $750 on a Berretta, over 20 years service it will cost you an extra $12 per year, a buck a month, to own a really fine shotgun, vs, buying something that is second rate to begin with.
For more info on the AL391 look here: [url][blue]http://www.berettausa.com/guns/field_guns/al391_urika/index.htm[/blue][url]