We stayed at The Signature Tower 3 at MGM Grand. And although its connected BE AWARE OF LOTS OF INCONVENICES.
For instance, in order for you to catch an uber/lift, you have to walk 20 minuets all the way through a long hallway to Tower 2, then to Tower 1, ( another long hallway) then finally when you are inside MGM, but then you have to walk further down into MGM's lobby which is also long, then finally to their own "Uber/Lift "Designated Area". Which sucked just to get to anywhere you wanted to go. Seriously took us 20 minuets to walk to catch an uber/lift.
The space is nice. View from balcony is gorgeous. - There are absolutely no pots, pans, dish soap, utensils, cups, toaster, anything at all in the kitchen. Bring your own or you are out of luck. - There was only one roll of toilet paper offered , 3 towels and very little linen for 4 people. but Nat was super helpful. When you ask Nat specific questions your response looks like it was a copy pasted general message that many times did not answer my question. That was weird... The extra beds (cots) were stuffed in the corner of the balcony and the balcony was filthy. Bring your own Lysol wipes and spray!
To avoid all of this, just stay at the MGM. Overall it was ok, but I definitely enjoyed Vegas despite all the nonsense listed above. Enjoy!!!