If you look back over the forum you will find that I was the queen of overlocker-dissing. Then I bought one. I love it.
If it can be overlocked, I overlock it. I almost never have to change any settings, and the threading really isn't a big deal - all colour coded and quite straightforward.
I'm not quite so fond of my coverstitcher, but we're working on it. It does like to break one or other of the needle threads after sewing about 6 inches and I can't figure out why.