I just got my 60CSx and have played around with it for the last week - the reception is unbelievable. I have been getting 20 ft accuracy in the basement of my 2 story house with it; I used to have to put my old Magellan on a window sill to get reception inside, so the 60CSx is awesome in my book. I haven't used it in a canyon yet - but that is coming.
Also - it is getting so cheap - with the $50 rebate I got mine for $270. I think they are selling the inventory off to make room for the Colorado.