These boots are very comfortable.  They do run a little big (maybe about a half size), but they still stay on my feet.  I have skinny legs and they fit them well.  I was a little disappointed that the tie in the back doesn't actually tighten or loosen, but it isn't a problem.  I have not had any problems getting these boots on and off, but again, I have very skinny legs, so maybe that helps.  I don't know if these will work over jeans-  I think they would have to be really skinny jeans since you have to pull them over and there isn't much leg room.  Over all, they are very comfortable and I really like them!