I've had three Behringer mixers in the past. The two larger ones were great and are still in use by people to whom I sold them, after quite a few years. I had a little small one, I think 5 channel, that was fine except the power supply cable didn't hold up. Considering the mixer cost somewhat less than $100., it wasn't worth repairing or replacing to me, so I gave it to a guy who needed it. He ordered a new cable for it.
I wouldn't be afraid to buy another Behringer.
I have a friend that owns a local music store and he quit carrying them. He said he got too many in for repair, and he had to deal with getting them replaced, but I really think there just wasn't enough profit margin in it for him, when competing with internet stores.