I play all 3 specs (casually), and I already pretty much decided I want to be in Night Fae on this monk, so my general feedback would simply be “please make the two monk spells Night Fae grants something that a monk actually wants to press.”
I said this WRT Soulshape:
I noticed in the DK forums that some of them love this spell, I assume because they’re so starved for mobility that 30% feels like a lot. I made a video clip (that I don’t know how to share anonymously or I would here) showing my Beta monk running down a path (with 10% Windwalking on), engaging Soulshape, then letting it expire. It is very, very hard to tell if your speed changes at all.
It isn’t a Night Fae “dealbreaker” for me on my monk, but in its current state, instead of actually enjoying the actual sprint and blinks, it’ll be relegated to the form collection game and a macro named Shadowmeld.
As for Faeline Stomp, I haven’t given it extensive testing, but everything that has been repeatedly said about it is mostly cross-spec for me. When I cast it, I should already be standing in it, and I want to want to press this spell in all specs. I love procs-of-procs (I used to main Shaman), but they hinge on being excited when the proc happens. If casting Faeline Stomp is meaningless, it doesn’t matter how often I get to press it. I’ll eventually just take it off my bars.