Hi.
I wanted to provide my 5 cents on MM hunter on the PTR.
First of all: Hunters mark remains the worst ability in the game. Having my raidbuff consist of spamming 5 globals on council fights before pull, or mid pull on add fights is not fun, interactive, or immersive. Its clunky and annoying. Just admit that you cant fix it, remove it and give us a 3%crit as raid buff instead, this also has the benefit of being useful in m+ as well.
For more MM specific stuff i will start with the 2 negatives in the new talent tree layout. Moving the hydra + trickshots node out of our mandatory pathing means that we loose out on the one niche we had relative to bm/survival which was being able to do 2 target cleave without sacrificing single target damage. This is imo a fairly niche thing to have but gives us some flavour and identity.
The other negative would be that the tenacious/cunning node has been moved from our mandatory pathing, and MM goes back to being punished for being the spec without pets where we now have to again sacrifice defensive stats or utility for dmg which was something that the old talent tree fixed.
Another thing that has been talked about for years is that multi shot still has to hit 3 targets to activate which frankly speaking is insane and means we are effectively horrible in any M+ dungeon where there are 2 target bosses, and is a frustration which no other spec in the game has to deal with. The fact that its still in this state is atrocious.
For the last negative i have found so far its the fact that volley unlike many other ground target spells still dont have an option for casting at the target (see blizzard, earthquake for reference).
Some positives tough is the new take on explosive shot and trying to give it a proper identity, the new apex talents that hopefully should open up some rotation etc with tier sets or other things. And the new deathblow is a massive step in the right direction.
All in all there is some good points but right now it feels like whatever dev is currently working in MM either does not play hunter at all or just straight up does not care enough to fix the class and spec despite 3 reworks in more or less 2 xpacs.