I started an account on SDF's Lemmy instance today. Got a 3 letter name and I trust them to keep it alive for the long haul :) I haven't missed Reddit all day. The only reason I went there was to see if any subs I frequent had an official announcement of moving. Finding niche communities is pretty simple and they're mostly healthy. It was a tad confusing at first but, once I picked an instance to join, it only took a few minutes to figure out how to navigate it. My biggest hurtle was not knowing about the "All" button at the top, they should do more to emphasize that. IMO it should be the default.