I did a Dynamis run with NoLimit on Tuesday. Turns out it was their first Dynamis run, but I was very impressed. We easily got the win with 25-30 people and had about 1-1.5 hours to farm after the Boss.
I would recommend this group to anyone. They were a lot of fun, very friendly and helpful, and there was no drama. I have been on winning runs for every Dynamis but Tavnazia (never attempted it) and I think this group will be able to win all of them too.