We visited in July of this year and had a great time! I second selecto chedraui. It was the most amazing store- located approximately at km 9, you get off at the playa caracol stop and walk across the street. Soriana is good when you want to take a short walking trip to grocery store. Maybe bring some backpacks to carry groceries back in? They (Soriana's) also have a delivery program that stops running at 7pm, nominal fee.
We used entertainment plus(USA transfers) and they were wonderful.
As far as a building request, I tried when concierge called me but they said I needed to speak to the hotel front desk and I decided not to worry about it. When we got there, we asked about view and was given a different option but decided to stay at our original. Great resort.
Have fun!