That is amazing! A totally deserved plug - love it. I don't live in a very hilly area, but I was frustrated my strava jig tracks looked so 'slow' as I was going up and down my local coast hills on my run. Hope it can work in my area.
It should, the elevation data comes from the NASA SRTM dataset, so unless you live somewhere above the arctic circle, it should work. Try it out, you can drag and drop a GPX/FIT file on the homepage (http://cubetrek.com) without setting up an account.
