I have the mp153 which Remington was importing under their name as a spartan something or other (forgive me if I have it mixed up), purchased roughly 4 and half years ago.
I have the full synthetic one with 28" barrel. I was similar to you, looking for a catch all gun, something for fun, and possibly some hunting.
I thought it had a good price, and liked the fact that it came with a full choke set rated for steel shot (duck hunting), it uses browning threading for chokes I believe (I bought a super full turkey choke for it). Also it takes shell sizes from 2 3/4 to 3 1/2.
I have fired several thousand shells through it without ever having a problem.
I love shooting trap with it, its fairly light weight(my opinion), and the recoil is very very light, it also cycles all the different shells I've tried, different drams, from light to heavy loads. It is quite easy to clean as well (not that shotguns are overly hard to clean).
The only other semi I have shot is a beretta pintail, and I like the Baikal better (when shooting trap on cheap target loads, my friends pintail had a few issues cycling, while the baikal ran flawlessly). I've shot over unders, side by sides, pumps. While they all have a special place in my heart, the baikal is a great semi and in my opinion you could do no wrong with it.
Also they are built like a tank... Check out this video...
http://youtu.be/JzmcMbLY2fI
Cheers!
J.