We stayed in a junior suite for 3 days and totaly enjoyed.
Check in was fast and valet parking was excellent.Total building is nonsmoking, nice smell.
Our suite was large,clean and nicely decorated.Bed was comfortable.We used kitchenette only
for breakfast .Bathroom was large with spa tub...
Wi fi worked very well.
We used mostly Harmon Street entrance.Short and fresh air.

The Signature has large rooms that are more of a suite than a room . Ours had a kitchen /bar
. The bedroom and living room had tvs that came up out of a cabinet . It had two bathrooms that were beautiful . The view was terrific

First off its a pain looking for property is you enter off MGM's main entrance. You need to enter off Harmon which has a gated entrance w gaurd who directs you to the hotel towers. We had a one bedroom unit w balcony on the 7th floor. Check in was was courteous and efficient and room was gorgeous.

Pros:
- 2 bathrooms w 2 showers for families
- quiet w no casino below for those preferring a quieter Vegas experience without noise and smoke
- Good shower
- full kitchen
- Cool desk in bedroom w T.V that rises up

Cons :
- Hard to locate
- I estimated 15min walk to casino through long boring hallways that lead you near entrance of MGM pools and reastaurant corridor

We visited Vegas the week before Christmas, 2011 and was disappointed to find many of the shops and restaurants in the MGM closed. The room was well appointed and the hotel overall was quiet at night ( my favorite part!). It did take about 15 minutes to walk through the Signature and then through the MGM to get to the street, which after a day of walking, was especially tough! The hotel charged an amenities fee of $20 a day ( for the newspaper, bottled water, etc.) but we never saw a newspaper and got a total of 2 bottles of water over our four night stay. Staff were pleasant but couldn't help us with a few room/housekeeping issues since we rented from VRBO and not directly through MGM.