I had a good stay but there were some frustrations bc there was confusion about what I was exactly getting. Let me break it down.
These rooms are in the Marina Bay Sands which is a huge hotel. All the rooms are hotel rooms. None are privately owned condos. So what's happening is these guys get the rooms for free or cheap as some kind of loyalty bonus then they turn around and sell these rooms they got offered on Airbnb. As a result they have no idea what room you will get etc. They simply act as a middle man and for doing so make some money while offering you a room at a discount.
This means your room will have your name and another person's name on it. This also means when you check in, if you mention Airbnb you might encounter issues as my friend did.
The price you pay here on Airbnb is usually for a base room (floors 2-9) with often not a great view. As soon as you buy a room they text you asking if you'd like to pay more to get a higher floor so expect the upsell. In the end you will save money with these people but it's a little less smooth of a process.
Getting to the pool and ordering room service was no issue. (Paid for room service with a card rather than the room.)
All in all I was content but I wish I knew what I was getting. Hope this helps.
Actual hotel reviews are plentiful. Summary is it's a great hotel with way too many people in it. The pool is special and so is the view but the hotel itself is just so full of people that it's overwhelming.