It’s fun. They’ve greatly improved from just a few years ago.
I don’t worry about what they do with my data it: they have a power I can’t touch at a price I can afford so it’s worth it and I’ve gained a lot from it.
I have had a test with 23andme and one with MyHeritage. My mother had 23andme and AncestryDNA.
I find tracking down family lines to be enjoyable, particularly finding far off cousins that I’ll never want to know in real life but I like knowing they exist.