This is my first HRM, and I dove into this one for two reasons 1) its supposed ease-of-use and 2) Movescount. It is easy to use! And the Movescount website will be right up your alley if you are nerdy, mathematical, or stats minded. I love keeping track of my progress through a month. With only 3 buttons on the watch it is quick to learn, so the interface is not frustrating. The Movescount interface is easy, too. I run and ski a lot at night: the only thing I'd change is when the HRM is engaged and you use the light, the backlight flashes to save battery. This is difficult for me to read whilst running. Otherwise, I love everything about this watch. And in the black color it is the perfect blend of casual but dress-up (for me) watch. By the way, the sidebar description says it has an altimeter: IT DOES NOT HAVE AN ALTIMETER.