I didn't see them much in the Shoutcraft tournament except in early game TvT. I feel like they should be good in theory but maybe people haven't really figured out how they fit into the meta yet. tbh I haven't seen a lot of new LotV units at all yet, liberator is probably most frequent but still only maybe ~40% of the Terrans I've played are using them. I've only played a couple ZvPs against disruptors (they seem super OP if controlled well, roach hydra off creep cannot dodge them, but everyone I've played against so far uses them poorly and loses them for free) and haven't had to deal with adept harass at all yet.
I kinda wish I could find a place for lurkers in the midgame but it takes soooooooooooooooo long to morph a hydra den into a lurker den that you can't fit the time in to build them against Terran pushes unless you commit to ravager-roach-hydra as your main composition.
The only thing I can find that takes longer to research/build for a Zerg, besides attack/armor upgrades, is adrenal glands, at 93 seconds. Hitting timings perfectly, it's 2:47 from when you start your lair before you can morph lurkers.
Yeah, I haven't found the liberator to be all that fun but I suck with them; same with the cyclone, I just throw them away stupidly.
Lurkers are so annoying, mostly because if your opponent has 3 or more, it can be hard to tell where the spikes are coming from amid the chaos. Then you misplace a scan or head your units in the wrong direction and get hit again. I'll get used to it eventually.
It seems to me like the only fun/useful new units are on the Protoss side.
Pylon overcharge is really starting to irritate me - it's just impossible to touch Protoss in the early game now with speedlings. It only costs 25 energy ffs, the mothership core can just toss them out like candy. It forces Zerg to polarize their build order, because either you go super all in from the start or you play economically and hope you don't get all-ined too fast - anything in between is just dumb, because Protoss can hold your pressure easily and you would have been better off building drones.
Seriously one of the stupidest changes this game has ever seen.
I played a TvZ on that map where there's two entrances into your natural, but you're supposed to block off the area that includes your third by knocking down the rock tower. Well I didn't know any of this, so I just walled off teh ramp to third and didn't realize there was another entrance. My opponent is apparently also terrible and ignorant about maps, so he tries to baneling bust my wall, leaving the completely open entrance totally unmolested. I hold and win a very ugly game.
You can at least imagine justifications for pylon overcharge. What possible reason could there be for allowing nyduses to sometimes kill you even if you immediately spot them AND pull units to target them down as soon as they pop?