I'm used to Ancestry and they haven't pissed me off, yet, so that is my main database for my trees. I used to have whatever the software was that interacts with Ancestry, but I abandoned it years ago and just use the web interface. I am on Wikitree and Family Search as well, of course.

I also love things about Family Search and when I want to send someone a link to, say, a census page, I find the page there and use that link, since not everyone uses Ancestry. My main complaint, for myself, is that on Family Search I have encountered people with bad data who ignore the good data and if I make a change, they change it back. This is going on on two of my lines and it's so frustrating. On one of the lines the person who keeps making changes is herself Mormon, and rather than fight with her, I've decided to let her have Family Search, so long as she doesn't take down my document explaining why I'm right. So far, so good.