I'm very surprised that the Westin brand would consider this change. I can almost see it for aLoft or even Element, but not Westin. While I applaud the efforts toward being more green with far less waste, I'm not convinced that this change is going to please the majority of guests.
I don't think we're at the place where this can be seen as anything but a cost-saving move and that comes across as CHEAP to most folks. I'm quite surprised that the brand management folks over at Westin see this change as being in line with their brand's essence.
Time will tell ......