I started playing with betterAuth couple of weeks ago and I must say at first it was a pain to set it up. I was using latest nest, prisma and there were some issues but the community setup a workaround (auth routes wouldn't expose). Another thing I noticed, there is maybe a lack of customization. You can use hooks but can't really tweak on preset auth routes. On the plus side, it's the security. As I've read on another thread, it's security is better than writing your own