Behringer sucks... I've gotten rid of or returned every piece of gear I've had... except the behringer B1.  Any singer I run through it, likes the way their voice sounds... it is also very similar sounding to the C1.  So much so, that if we did a shoot out, I am sure that most everyone couldn't say one is better than the other.  While it is a budget condenser, it certainly isn't any worse sounding than the SP B1. 
As far as build quality goes, that's a different story...