I have two friends with BMP's that are both quite happy with them. It gets you pretty much everything you need in one stop, with the possible exception of a better trigger. I have a LRP, and while the action is a little nicer, I like the BMP chassis better.
The only real downside to buying a Bergara is that you can't pick up prefit barrels for it like you can some other brands. You can have Bergara put a new one on for a reasonable cost, but you're stuck with one of their contours and calibers. Or you can always have a smith fit one up for you. Factory barrels are good shooters, but if you shoot enough that you expect to burn one out its something to consider.
Another thing to look into is the firing pin diameter. Their rifles used to have issues with cratering small rifle primers. my 6.5 does, but I understand newer rifles (in the premier line at least) have a smaller diameter pin.
As far as value goes it depends on what your end goal is. If you're looking for a rifle that you can shoot as is it's a pretty good buy. If you want to be able to mod it into a full blown competition rifle it's not ideal.