There was no line what so ever, walked right into the elevator for a quick ride to the top. Views from the top were amazing at night.
Went up to the viewing deck just in time to see the outside shows at some of the other hotels. The views were lovely but not thoroughly happy with the narrow deck. We spent very little time up there.
We had a wheelchair visitor and staff did everything to make her trip workable. They did a VIP ride and helped us make the chair work with other visitors up top. Some great views... especially at night of Bellagio fountains!