HASTE IS NOT GOOD ENOUGH. PERIOD. Your cool down times are simply not effected enough... I can get my targeted Monk heals down like .1 seconds if I go full HASTE and just screw up my entire chracter. Don't Do this.
Just to add to this. The following is ONLY ABOUT MW, not disc/holy/rdruid/rsham/hpal
While haste will affect your hot and channel time, there is currently no advantage to stacking haste on MW. The reason for this is that with the exception of Renew, all of a MW's heals are instant-cast anyway. So from a cast-time perspective, haste can't improve upon instant, unless we break causality, at which point grats to us on our Nobel in physics.
Some may wonder about GCD reductions, but here too haste won't benefit MW. I tried with max haste, and was not able to lower the GCD enough to get an extra heal out during the channeling time of Soothing Mist. At level 20, MW can only get five casts off during a channel of Soothing Mist. No amount of haste can reduce the GCD to give you a sixth cast.
However, what I haven't finished testing yet, is whether once you have sufficiently high int, can Soothing alone out-hps the incoming dps. Note, you would never be forced to not use Enveloping or Vivify. I'm just curious about the throughput of Soothing on its own. Another way of putting this is: is there any crossover point at which Soothing heals for such a decent amount, that caring about speeding it up becomes viable. The keyword here is viable, not optimal. Obviously it will continue to be optimal to use your instants while channeling, which means stacking int and verse is better than haste. I'm just curious about finding if that crossover point between int and haste actually exists.
[doublepost=1532479182,1532477865][/doublepost]
Link to your guy? Thinking about making a monk.
Is it fun to play?
Right now I think holy Priest is the most fun
I'll throw my two cents in.
Just to help you know where I'm coming from, I've mained a lvl 20 priest since 4.3, so I'm decently familiar with how it plays.
And I was the only real mw in 20-29 during Legion. (it was super underpowered then but I always believed!)
Currently MW is now a very viable healer in 20-29. In Legion it HAD to be paired with another healer. But in BfA, solo MWing, while suboptimal, is viable. The reason for the change is speed.
In Legion 20 MW was sloooooow. So slow. You had to work your ass off, have your positioning perfect, and be playing with dps that knew the game. You were essentially casting 95% of the time, pre-enveloping your combat team, then jumping in with spot heals and prayers. I loved this style, and I love playing underpowered specs, so it fit me. But it made sense that people considered it unplayable.
In BfA, all of 20 MW's spells are instant-cast. It's probably the single biggest change to a spec we've seen in years. It went from longest cast times (of healers) in the bracket, to NO cast times. That's crazy. The only spell you can't cast while channeling is Renew, which itself is an instant that you just precast before your main heal rotation anyway.
Then you get to the dps output. If you are solo healing, this will obviously be low. In those cases, most of your damage will be from self defense; killing the brave rogue or mage on you. But if you get into a game with another healer, you can still do great heals and sit above some dps in damage. And the thing about MW damage is it's unlike disc's or rdruid's. A lot of their damage on the charts comes from dot pressure, which is great and useful. But MW dmg is all single target. You are basically putting out the damage of a WW. In that respect, MW is closer to rsham in dps style (although lacking the rsham interrupt). It's really fun running around keeping a team alive, while you land kills.
So overall I'd say if you have ever tried MW and thought it wasn't for you, give it another shot. And if you've never tried it, enjoy the fun!