I sat in both 22H and 22J on a recent flight to (H) and from (J) Germany. 22H is awesome and 22J is much preferable over a standard coach seat, IMHO. However, there can be a draft from the exit door. I had this happen on another flight to HNL but nothing that a few blue blankets stuffed under the exit door didn't fix. Bring warm socks just in case.