Been using BetterAuth for half a year/one year now. It's exactly what I always wanted when using Clerk (and its free as a side effect). I was never a fan of the "we'll manage your user Table", always set up the Web hooks to sync everything to my own user table, but still loved the development experience clerk provided (most of it).

I will never go back. Lets see if in 3 years I have a different opinion, but I can't imagine so.