We returned yesterday from an enjoyable stay at Villa Roma, our third time there. You can phone and request.
Most of the timeshare units are in timehsare buildings that are spread around the resort. There are also some in a wing of the hotel building.
The first time we stayed there we were surprised to find no full-sized oven in the supposed "full kitchen". When we objected they moved us to another unit with a full oven. Both units were in timeshare buildings.
Before our second stay I called to request a full oven and was told that the unit would be in the hotel building. I believe I was told at that time that we could not switch to a timeshare building unit. Our oven request was fulfilled and we found the main difference between hotel building and timeshare building units is the lack of decks in the hotel building as well as the ability to walk indoors to the restaurants and many of the indoor activities.
For our stay last week, I called again to request a full oven and was told that the unit would be in a timeshare building. I called again just before we left home to request a first-floor unit. The rep was skeptical about fulfilling that request since it was so late but we did receive a first-floor unit with a full oven. The refrigerator was a bit small. I don't recall whether this was also the case in the other units.
So they seem to be able and happy to fulfill requests. You could, for example, request a unit in a timeshare building close to the activities. However, this is not really critical since they have an excellent shuttle service that runs every few minutes.
Enjoy your stay.