It is pretty good. It is not doing everything reddit was doing for me. But it took me years to find all the right communities on reddit. No reason to expect a drop in replacement. Overall I was pretty skeptical of threadiverse working out really at all. It could have just been a fad. On that count I am pleasantly surprised.
I have gotten much less stringent on boycotting reddit on search results. At first I was resolved to never go to reddit anymore. Now I prefer other sites if available but I am not going to punish myself by willfully avoiding useful content. I try to get in and get out asap. I am rarely using site:reddit.com/r/subreddit anymore. But once in a while I do.