I’m really excited about what the designer has brought to the Warlock class for TWW. I’m amazed at the difference between the work on this class throughout its history… compared to where it has gone in the last 2-3 expansions. If you really look at the class today, someone really loves warlocks and it shows. Especially how much attention has been given to demonology. Sure, everybody wants a tweak here and there; but the funny thing is we usually don’t even want the same tweaks as other players. You can tell that this designer is listening to these forums… Even though I’m sure he/she has to deal with supervisors, managers, and other peers… Just like any other job… But then listening to us. I say congrats on a job well done. Sorry if I’m mushy about it, but I feel your pain!
Agree 
Demonology was my least favorite and I finding myself constantly switching back and forth on all specs!
Ah struggling to find the right transmog with my Destro new Malevolence form! Not many if any Transmogs with this beautiful VFX combination of fel green and purple flames…specially the shoulders and back pieces that are left without the VFX over them.
Maybe when I get the raid gear… hmmm 
Ah need to think to match up this ew powers with my Transmogs! I’m literally obsessing with it now… I hope the nerubians drop some of those transmog they have on too maybe I can find something that matches… oh god I can’t stop thinking about it 
Anyway, ehem YES like OP said WELL DONE loving the new updates…
NOTE: Almost forgot, did the Soul Fire get an update? I feel its looking the same or maybe since its green… I was almost certain I saw in beta or Alfa a video that made that spell look like a HUGE GREEN very spherical FIREBALL… it be nice if they add this new Purple Flame with Green fire VFX to it, just saying it would look so cool and sick with this new hellcaller VFX! 
Honestly, all specs almost have nothing new in their respected rotations. It is kinda meh. I am bored already with this 12-year-old main.
Yup hard agree.
Destro plays literally as it always had. Very little changeup. Not being sarcastic either.
They basically added visual effects with the demon summoning but it doesnt effect gameplay whatsoever