They are good shotguns. I would own one if they fit me. Fit is more important than brand. If the A300 fits then get one. If not then don't. Try a SA-08, 930, Affinity and SX-3 along with the A300 and get the one that fits best. The SX-3 is probably a little than you want to spend.
I joined the circus to become a clown fighter. I now know 46 different ways to kill a clown.