I moved to Dynamis from Primal and love it. The "worst" experience by far is alliance raid. I have seen multiple total wipes on first boss of World of Darkness like 5 times in a row in the same run even on Dynamis. I have seen -A- wipe on first boss in WoD on Primal but on several occasions. Outside of that,yes I ran a dungeon a couple of times where the tank involved thought they had to switch tank stance on and off as part of some weird rotation but the groupI was in was me another fc member and 2 duty finder randos. We were able to talk that person through how to tank calmly and they are a friend of mine now.

I have been on Dynamis for months and now my fc has about 15 regular people (didnt have an fc at all when I came), and the only thing we dc hop for now is Alliance raid and pvp eoulettes. I have no real complaints other than that