As a once low houred instructor, I feel I have to stand up and defend. In this world there is good and bad - it is human nature. If you end with an instructor that you dont like, go get another one. But if you go to a school that takes an active interest in the standards that their instructors keep, then IMHO it doesn't matter how old or how many hours an instructor has. If you dont want to be taught by a 22 yo with 300hrs, go some place else. But there are 22 yo with 300 hours I would rather learn with than some of the older "more experienced" instructors I have come across.
Some of the posts here seem to be by people who wouldn't lower themselves to learn from someone who is younger with fewer hours. May be I should add to the list of things that make a real pilot: the ability to learn from ANY other pilot.