I've stayed at Staybridge Suites in Vegas a few times, always a great experience. This hotel wasn't built as a hotel, I was going to be a timeshare but the economy forced the developers to bail and the IHG group took it over and it became the Staybridge. The rooms are spacious and modern with a full kitchen and a washer and dryer in the larger suites. Nice balcony accessible from both the living room and bedroom. Huge bedroom and bathroom with access from the foyer area and bedroom, great if you have people using the sofabed.
Location is perfect, just across from the Mandalay Bay Events Center so you are two minutes from the strip but away from the crowds when you want to relax, Great view of the strip too if you get one of the rooms on the north side of the building. Staff is awesome.