I've only received a few as gifts and I gotta say, I haven't been disappointed yet. I got one for dinner at Campagnola Trattoria and my favorite was for a 2 hour kayak rental for me and my girlfriend.
If I got that bright blue XKR that just caught my eye then I would want to shoot it in Central Park because a nice green background would really make that thing pop!
W SF just remodeled XYZ too! If the Indian Summer that SF had last week is still around when you go you should check out the pools at either the Intercontinental or the Phoenix!