Way of the Astral Body

What do people think of this playtest path? I've always enjoyed monks and this seems to have some possibilities. As I read it, the Astral Arms are only weapons, so no grappling with them. The other features could be OK. A way to use wisdom to attack and do other checks is exciting for the monk of course. Looks to me like the big bump to power is at 11th. I'm not sure how i feel about the capstone using Ki Points instead of being 1/day (long rest). What does the forum think?