I find them quite okay. I used to hate them, but I have come to really appreciate what it can do for my photography. Without a tripod I often can't get enough depth of field, especially up close or in dark places, even with the D3. I have a Gitzo 3541XLS which is a monster, but very stable when used right. I might add a smaller one too. I might try one of the RRS tripods, I am not sure yet.
I do have a good monopod, so I might try bringing that as a compromise.