I have to say over all this is one of the best raids in recent memory. The first part is different and usually not a challenge.
The second part I honestly wish was a bit more interesting but the Kopru is a fun enemy however he could use some more attacks. I do questions if the spikes basically having no save is intentional or not though.
The third phase is fantastic I enjoy this new trend of making the trash mobs matter and not something to be ignored some of them doing debuffs while the others do attacks that take advantage of the debuff is great. Lindal is fun to tank between trying to avoid her bite attack, the constant shuffling keeping her near a platform but not too close while having to keep an eye on and call roar. I've had a blast figuring out Lindal's patterns and quirks figuring out when and how to get in after a roar without taking the bite attack. Ghost flame being a constant threat to healers and the part is interesting her ability to counter deathward and undead party members is cool she also adds on to the debuffs to fire damage via burning blood which is cool. I do sort of wonder if she should be able to generate the "green fire" as well it seems odd to me she can't. The hand fight is pretty neat as well I'm still working on the best solution to gathering or dealing with the trash mobs. Obviously the bad part of the hand fight is the fact that the "eye" debuff never actually goes away once you acquire it this REALLY needs to be fixed ASAP.
And now some minor complaints about the raid I have beyond the little bit above.
I find it really sad that the trash cannot be fascinated. This is a core bard ability and even requires some investment to be able to fascinate undead and I feel like excluding this is really sad. Given that we already gave these mobs an internal timer that kills them if they are CC'ed for a long enough period tells me that it wouldn't be the end of the world if fascinate worked on them.
Back to reiterating part 2 I am really surprised we didn't add any "secrets" to this phase and I personally wouldn't mind if the Kopru was made more interesting somehow
I'll also add something for DC casters to do besides CC would be nice.
That's about it I really hope we get another new raid soon although I am still having fun learning the ins and outs of this raid on reaper.