Got my Reaper and Daredevil up, but haven't used Daredevil much. Reaper is great. Started tinkering with my Dragonslayer, and it's been a lot of fun. It does what I think the intent was, redefine elements of the class. (Sure, by making it a heavy armor ranger with no pet, but I'm sure I'm not th eonly one that wanted one of those...)
Neither of my engineers was very far along on hero points, so Scrapper is lagging behind, which is another I was looking forward to.