I have a Spartan 310 (single trigger O/U). It's a very well made firearm. I'd say it's a step above my 870 in fit and finish. I haven't had a chance to fire it yet (Christmas present), but I've fired some snap caps in it and I really like the feel. Baikal makes quality firearms.

I haven't had a look at a 453, but I will probably consider one eventually.