Pros:

• It's a cool idea, and anything that gets people outside and moving is great in my books.
• I've actually been looking for something to run my own beep tests, this seems perfect.
• The ability to attach to something high for jumps is awesome.

Cons:

• I have to say, it really is a bit pricey... I don't deny the technology is great, and I'd love to have one... but I'm not sure I'd want to spend that much on it... I'm not even sure if I'd want to spend half that.