Doesn't travel well- leave it at home!
I received this metronome as a graduation gift from high school and have had it for a few years now. My previous metronome was pretty simple (2/4, 3/4, and 4/4 settings) so I was pretty excited with the variety of rhythms to practice with as well as the ability to adjust how many beats there are per measure. It's biggest flaw though (as others have mentioned) is that the on button comes on very easily and therefore drains the battery very quickly when you accidentally hit it and don't realize it. If you have a regular practice spot and can leave it in one place where you won't hit the button it's a pretty good metronome. However, I do a lot of traveling with my instrument to teach lessons, practices, etc. so I'm buying another metronome to take with me that won't run the batteries down so quickly.