It is really great! Also just to be clear some books do come with drm, but it’s explicitly listed for every book. But you can also use a no drm filter in the search to see all the ones without it. A great way to find publishers to support!
Ebooks.com sells books without drm for publishers that don’t require it! I read a lot of sci-fi and Tor doesn’t publish with drm so I always buy their books there. I think Kobo is owned by Walmart so I try to stick to ebooks.com whenever I can.