I've had issues with ENTJs (who I know were ENTJs because they took the test). My main preference in a work/school setting is to be in charge, however, I don't mind others taking this role as long as they seem as smart or smarter than me and are not bossy/controlling/belligerent/etc. Most of the ENTJs I know seem smart enough, but they just have this condescending/bossy way about them that I do not appreciate. It makes me want to disregard what they say and completely go against it. If an ENTJ told me to stand I'd sit.
My sister is an ENTJ and we get along really well, we barely ever fight. When we do have conflicts though, it is usually because she is trying to tell me what to do (cut your hair, wear these clothes, etc.) and I almost never listen. I think she is really smart and I value her opinion but I will not listen to it if it is said in a certain manner/tone. I do not like to be condescended to. I know four ENTJs (who I know for sure are ENTJs) and I would say that this bossy condescension is ubiquitous for all four of them, but I am not so ignorant that I would label all ENTJs as being this way.