I have a Spartan by Remington, made by Baikal in 410 sxs
I find it to be a functional gun and I've used it for more than 5 years now...
I think they are crude, a lousy wood finish but I bought the gun to use for bunny hunting with beagles.. The gun takes quite a beating in brush snow mud and hasn't had any problems with the use/ abuse...
If it fits your budget and you are not looking for a beauty go for it..To be sure, there are better guns out there so the choice is yours.
Same as Timberdoodle, I have the Remington Spartan, only in 12ga sxs. Same opinion of the fit and finish. The one thing that I'll add is the trigger on mine stinks. It is too short and it's filed down to a razor edge with a point on the end. I tried it with waterfowl loads once and it drew blood after a few shots. If I could have a do over I would have at least sprung for the few extra bucks to buy a Turkish gun.
I have the 20ga O/U and it has worker great for me the past few years. Like they said before it's rough around the edges but will put up with a lot of abuse. Mine was very stiff to open and close but after a few cases of ammo though it loosened up nicely. I use it as my rainy day gun.
I did not have good luck with my 20 gauge over/under. when i shot 3" mag shells the recoil from the first barrel would nock the safety back on so the gun of course wouldn't shoot the second barrel. it shot 2.75" shells fine.
I have a 20 ga s x s that I use quite often. It isn't the smoothest to open and if you don't open it hard second firing pin isn't locked but it is light, swings beautifully and drops pheasants like a laser.
Mounted a scope on a friends Baikal combo gun 12/222 . it locked up tight , wood to metal fit was good , nice walnut better than expected , triggers broke clean at 4 lb. and both bbls shot to same point of impact at 30yds. rifle bbl grouped at 1" , 5 shots 100 yds., did have to leave it cool between shots. my opinion a good buy for a combo gun at less than $600.00