I've done a couple of prog runs of Forked Tower and I feel like it's a great piece working towards improving the fight design.
Gives a lot of hope that whatever they iterate with in Evercold will be great and the midcore 8 person raids will be a good stepping point for people to start off raiding.
However, there is one major letdown in it, the limited revives. I think the limited revives are a great idea but how they implemented it is quite poor due to the amount of insta-wipe mechanics. For those who haven't run it, you get 3 revives total for the entire dungeon but here's the catch, you can't revive unless someone is alive.
So you're forced to have someone with has been rezed but not accepting the raise sitting in the map refreshing their revive so that if there's a wipe they can get back up out of combat to rez people so you can keep running the fight.
We had a wipe on the second fight where everyone died, most people had 2 lives left, but no one was alive so we couldn't keep going and had to spend the next half hour getting everyone back to lvl 20 and getting a fresh instance.
So unless you're forcing someone to not participate in the fight you're not actually going to be able to utilise the limited lives because there's very little point to reviving people unless you're nowhere near a mechanic that will just kill everyone.
Great fun but some not well thought out things in it.