I bought two stereo pairs of the C-2, since we sometimes need a larger amount of microphones for some shows. So, that means 4 microphones with accessories for a total cost of 76 Euros. I couldn't invest in something more expensive, so I was sadly convinced not to receive any decent quality for that price, but I was proven wrong.
The -10db came in handy when using as overheads on drums and percussion. We did the low cut in the mix so we didn't use that feature. Anyhow, i suspect it's not possible to combine low cut with -10db..? Haven't checked it up, but it kind of seems so from looking at the mic. I guess the C-2 provide the basic features and the hard case and accessories (windscreen and stereo bar) for that price are incredible so let's go for 5 stars.
We used them as overheads on drums (the stereo bar came in handy) and percussion for a live show. Both the live sound and the recordings worked great. Later, I also recorded some backing vocals for a guide track with one of these, since it's easier to just put the windscreen (also included) on and sing directly in than rigging up my large diaphragm mic on a stand etc. I was amazed how clear the sound was!
My colleague has a lot of experience working with an earlier model of these mics from Behringer. He pointed out that they have to be handled with care as they can break easier than other comparable mics. That justifies my 4 star quality rating, actually I can't say anything out of own experience. Anyway, since they come well protected in a stuffed box, it would really be my own fault if they break. I don't know any other mic than a SM58 you could mistreat just for fun ;)
Overall, I'd like to point out again that these mics work VERY FINE for what you normally need a decent small diaphragm microphone for! I have a Rode M3 since years ago that I use every now and then. I have no reason to say it sounds better, and again, it costs the same as 4 of the C-2. And something like a Neumann KM87 was out of my league anyway. To summon up, if you're in for a budget small diaphragm you can just as well buy the cheapest ones there are. You won't regret saving the money and I really don't think a microphone for even four times the price would make you any happier.