I have 2 - BF 210's
For rehearsals I just use one, against a Marshall 412 and loud drummer.
We play hard rock / grunge / stoner stuff, where the bass is quite prominent.
The right amp and setting and your laughing.
In comparison, prior to this I had an Ashdown Neo 210 for rehearsals and although that was a good little cab, quite directional, and had to have it sat vertical to get a decent pull.
The BF 210 is more akin to other brands 410's. It goes louder, deeper and disperses better. I can keep it horizontal and not have to worry about not hearing it.