For some reason, this film wasn't on DVD until this year, but it was shown a LOT on late night television back in the day. I saw it as a little kid and thought it was frightening and effective back then. Of course I am older now, but some of the veneer of seeing it back then still holds up.
The mummy is dressed a little odd (no bandages), but his face is certainly hideous enough, and there is a reason for his strange garb which is unveiled later on. A fair number of people get killed, and we see the mummy quite a bit, really.
Some people complain we don't see it for the first half of the film, which I guess is true, but on the other hand, the film is only 66 minutes long for Pete's sake. We don't see the monster in the first half hour of many movies, and this is no exception.
If the movie dragged on for 90-120 minutes, it would be a disaster, but for only 66 minutes, it holds up. I pine for the days when a film-maker felt free to make a shorter subject, particularly when the topic doesn't hold up for a longer time. I wish the makers of Pearl Harbor had had the guts to cut THEIR movie back.
