Tower 1 at the Signature is the best because it is closest to the MGM. This particular condo is a penthouse and it is great. So spacious with a separate bedroom, HUGE master bathroom, full kitchen equipped with enough to make simple meals, sofa bed, and a balcony overlooking the pool and Wet Republic.
The owner responded to be instantly when I asked a question and sent me an arrival message with instructions a couple days before check-in.
I will stay here again the next time I go to Vegas!