The bike will fit someone between about 5'10" and 6'2".
I'd say this to anyone that is considering buying their first mountain bike - most people take the path of buying a $500-$600 bike at first and quickly realize (within the first couple months) that the component and fork quality simply do not cut it. If you really want to give mountain biking a chance you should start with a high-end used bike and upgrade from there. The reality is that a well maintained high-end bike will hold it's value pretty well, while a used low-end bike won't.
Make sense?