Awesome! Everything looks exactly like on the pictures! Although you'd probably not spend that much time in the suite you shouldn't miss to watch the sun set from the balcony and take a nice bath in the Jacuzzi.
The MGM is huge and located at the south end of the stip. The Signature is connected to the MGM (it takes around 10 minutes to get to the MGM). You can find plenty of restaurants, shops, a large casino and one of the Cirque de Soleil shows in the MGM.
If you get the M-Life card at the concierge desk you may get discount on shows and tours!

Have fun in Vegas!