As we are after release of the Hard Ch22 PQs and Onslaught set I decided to give some feedback after succesfully running ~7-8 runs and few unsuccesful attempts. I'll give my insight based on Dammaz Skar PQ as I'm dirty order-only player
I really like the job you guys did, especially 3rd and 4th stages are fun. Not a simple tank and spank but requiring explanation of tactics to the rest and forcing good setup of warband. Will go into detail later

First off - trash, 1st and 2nd stage are pretty much the same in mechanic, if anything I'd suggest lowering the number of trash needed to kill by 20%, not a big difference but it would not bore ppl to death. It's only a 30mobs difference in total for 2 stages.
3rd stage is working perfectly, it is a good moment to set up warband with the newcomers that were late on earlier stages and explain tactics. The thing that this stage boss have unique abilities make it an interesting encounter instead of being simple tank&spank.
Lord fight is simply gorgeous, although acquired skill often bugs UI for ppl but I guess that can't really be helped. It is a proper PvE fight requiring knowledge of tactics and proper setup. Half-assed warband will fail miserably
Now, don't take this part as trash talk or attack in devs direction, it's just mu thought on the all hard PQ22 encounters.
If we were regular EA/mythic server the current strength would work well but as for now encounter is too hard. 99% of the guilds are small, maybe 2-3 guilds can supply 24man 2-3 times a week at most, and these people are hardcore RvR players, they won't step up to do PQs that won't give them anything as gear isn't comparable with current BiS sets.
Now, we obviously can't lower the PQ difficulty to fit 6man in there but making it 12-18 man should be okay (still 9+). That way even small guilds can fill their ranks with pugs and attempt to finish PQs.
Why I think that is the issue? Well, when ruin came out it was one of the best sets in game and ppl were farming it like mad, everywhere they could, for few weeks. Now we see that Onslaught came out and... for 6 hours we had trouble getting enough ppl to join our WB, after 2 hours we managed to run our 1st Dammaz Skar. After 1st run half of the people left cause only 1 bag dropped for 24 man and we had to wait to fill our ranks... and it was like that every run.
Now, it was the first day that usually shows the interest of the population in doing stuff like that, I must say I was dissapointed that on average it was around 20ppl all the time in EU primetime! (our warband was in most cases full but there were always people still en route to the PQ, hence the effective number). Once other 22hard PQs are open people will spread even more and it will be even harder to get a group (and after that pray to RNGesus for bag). Imo fitting it more for 12mans would ensure action in these areas even for timezones that have troubles supporting full warband even for RvR (yup, NA folks) and make it appealing to the rest. Let's keep in mind that majority of players are here for the sake of RvR and don't give a damn about PvE. Now let's not make it harder for that few guys that want to enjoy PvE side of the game.
Anyways cheers and good job with the PQ, lord fight is really amazing.
and an extra 'how to lose roll by 1 point for gold bag' (purple were giving ruin fragments at the time, no idea how it is now)
Spoiler: