I feel that speed is the biggest benefit. I was on kbin.social and in the beginning everything was fine, but after a while when they got more and more users it was terrible. Every second click led me to cloudflare sometimes even with the capcha.

On my own instance now since yesterday everything is so fast! I chose lemmy because it's written in Rust and I have the feeling that it will be more resourceful and with less bugs than /kbin because of that ^^