I had one on loan for an extended T&E session. It was not that suited for trap or Wobble, but it excelled at more practical exercises.
The last thing I did with it was in a shooting pit. I kept a 3 lb coffee can jumping with slugs out to about 40 yards. Lots of fun.
It handled all loads as long as I kept them at least 1 oz,3 1/4 dram without having to adjust the gas system.
Performance was flawless over maybe 400 rounds, mixed shot, buck and slugs.
Handled OK, though I prefer my 870s for when the threat level needs reduction.
This one was bone stock. The big prob was the trigger. Heavy,creepy and nasty, it needs major improvement. I'm told the conversion to a separate PG like the AK fixes this. This moves the trigger group to a straight line setup and greatly tweaks the poundage, feel and crispness.
Smaller prob was the sights, Again aftermarket stuff is the fix.
I like the Saiga.....