There are some functional differences, which you might want to look up (e.g. redstone isn’t deterministic afaik, so if you use complex redstone you might want to rethink). Also I’ve heard the servers have very poor performance.

I’m confused, it’s this free to self host?

I had one who was shouting at everyone all the time! I saw him swim only once and he could shout at people even while swimming…

That’s an awesome Chat sticker set!