I'm sure it'll be great... but its not the only place that trals like this are available. Don't get me wrong, if I went to whistler again, I am sure it would be my favourite trail of the lot (it seemed to me to be exactly what was missing from the whistler set-up - long natural alpine trails, as opposed to obviously and gargantuan man-made ones) but, go to Zermatt - epic scenery, epic length natural alpine trails, and even fewer riders (though a good lot of hikers to negotiate on the better known routes). It may be one of its kind in Canada, but I doubt it will beat several other, much lesser known locations.