Not sure if this helps but the FP there is nice and IMHO is in a good location - I can't comment on the W but all I can say is I was able to walk to most places that I wanted to go - other than that I took the subway... or hired a driver through front-desk (note: gratuity is inclusive) to take me up to Valle Nevado. (just pray before you go on the ride up b/c they do crazy blind corner takeovers on switchbacks without protection... seeing all those crosses along the side as you go up make you want to have a religion).. woops I rambled a bit there...