Question about time of gameplay

[Lisboa]

So I am having to give up WOW because at the higher levels the instances are taking too much time for my wife to tolerate my playing. I picked up D&D Online from Frys ($38, woot) and will open it up if the trial period is fun... what I wanted to know is whether I will have the same problem with long dungeon crawls that I will not be able to leave? How much can you accomplish things in a one or two hour sitting? If you have to be grouped and going through dungeons, can you really accomplish much of anything?

[TeanninBramblefeet]

There are shorter dungeons, and there are longer dungeons. Some of the higher level dungeons CAN take several hours to complete, but most if them aside from like... two or three can be done in a 1 or 2 hour sitting.