I been playing since closed beta, and I can say while they have fixed a lot of things, theres still much to be desired. The only reason to start the game now is if you want to get a head start on your ranking up. Otherwise I would wait at least until mid june when patch 1.18 is supposed to be implemented with a bunch of battle system changes.

They are introducing a story that ties in with the lore about the beginning of the 7th umbral era, along with a some quests. If that kind of thing interests you, it is kinda neat to see the world take shape as they are improving/fixing things and have lore to go with it. But its still very limited.

So, if you like story/ want to see the world take shape/ want to advance ahead of others start now.

If not, then wait till 1.18 gets implemented and see what ppl have to say about the game mid-june.

Good luck!