Love my High Standard Model 10B, the grand-daddy of bullpup shotguns. Aboard my cruising boat it's the cabin-queen. Handles like a big pistol, effective and reliable. Nothing bad to say about it. If you do not know what these are, Google them.
For lefties... Sorry. They don't fit.
BUT: its a special purpose shotgun. If you plan to shoot from within a vehicle, in a boat cabin, or dismounting thru a hatch they are great. For general self defense? I'd stick to the old standards. Remington 870 or Mossberg.