The room itself was absolutely terrific. The amenities superior -- I slept like a baby in the plush bed and thoroughly enjoyed having a whirlpool bath in my own room! My name was waiting at the front gate to let us in. The location was also great -- while just a touch off the strip, it was only about a 5-minute walk to the main blvd and the hopping new area of City Center/Aria/vDara and Cosmopolitan.
Loved that it was a haven from the smoky casinos, yet the MGM casino floor was only a 5 minute INDOOR stroll thru a skywalk away.
It was also wonderful to be away from the noise of the strip and away from the, let's just say, raucous atmospheres I've found in many other LV hotels. I never even heard another guest's voice even ONCE while in the sanctuary of our room. Having to use my room card to even access the grounds of the hotel made me feel like it was very safe as well.
My only knocks would be:
1. Cell phone service (specifically AT&T iPhone) and the WiFi/wired internet were awful. Could not make/receive phone calls on our cells while in the room (you are on a very high floor which is GREAT for view, but I guess the cell signal is very weak). That led to some frustration in terms of communicating with friends elsewhere. And the Wifi worked great sometimes, then would just go away. Same with the wired internet. I tried to go with the flow of being on vacation, but if you needed to do work, this could be a big pain.
2. Very minor, but our toaster didn't seem to be working on morning 1 so we called down for a new one and they connected us with the leasing agency who handles stuff like that. They said they would happily get a new one right up to us. No one ever showed up for our 4 days there. It wasn't a huge issue so we never tried again, but it was a frustration.
3. This is a knock on MGM Signature, not this room, but the pools weren't in the sun for the first half of the day at least. We wanted to do a morning swim the first day and couldn't. Bad design. However, my wife went to the MGM Grand's pool one day (you get access) and said it was just terrific. So there's that.
Also a helpful hint for future users of this apartment -- if you have a rental car, the parking garage for Planet Hollywood is MUCH closer than the actual MGM Grand parking lot. It's around corner of Harmon/Audrie.
Overall, we very much enjoyed our stay and I would recommend this apartment highly (especially if you don't have AT&T!). We stayed one night at Mandalay Bay after our flight was cancelled and the MGM Signature apartment FAR FAR FAR outshined it. You're getting a great value for your dollar here.