So I recently completed Dawnguard for the first time - and swore I would never, ever do it again. It may seem silly or trivial, but I just got completely burned out on both the Soul Cairn and the Forgotten Vale. Long before I was done with either instance quest-wise, I was "done" psychologically. Still not sure why, since I'm a free-ranging explorer in Skyrim proper, but there it is.
Anyway, I'm now hesitant to do Dragonborn because of that experience in Dawnguard. Maybe I'm talking to the wind, but if there's anyone out there who felt similarly about Dawnguard and completed Dragonborn, I'd appreciate any feedback on how the two compare.