Each villa shares a common entrance. There are separately-keyed doors to the upper and lower units within the common entrance area.
There's a flight of stairs to access the upstairs unit. Once you get up there, it's an open floor plan with a big combo living/dining area and TV, a pretty deluxe kitchen, and a balcony with a perfect view of the climbing esses. High ceilings, big windows, nice furnishings and decor, plenty of space. There is a separate bedroom with queen bed and a bath that faces away from the track, towards the parking lot.
The lower unit is about half the space of the upper unit. There is a sitting room with a couple single-occupancy pull-out couches, a mini-bar style kitchenette/counter, and a walk-out patio that's located under the balcony of the top unit. There is bedroom with queen bed and TV next to it, with a double-door divider to the sitting room. The bathroom is sort of wedged into the common entrance area. The whole vibe is sort of a basement guest room or in-law suite. Nice, but not impressive like the upper.
The upper is usually not much more expensive than the lower -- sometimes as little as $10 more. So, I get the upper. If I have a group of six, we get the lower too, and use the lower as a bunkhouse for 4 while the social scene runs upstairs.
Or if the budget is tight, you just get the upper and put a couple people in the living room on air mattresses. If you confine the upper occupancy to 4 people max and you're discrete adults about it, staff probably won't hassle you about it.
The villas are privately-owned condos, so you can't treat them like some summer beach-house-jam-'em-in festival. They are best used when I have a mixed group of drivers and socializers who want to stay, dine, and wine together in a nice atmosphere.
When I'm looking to get the max number of heads on beds for the lowest cost, the pit lane suites are my favorite. They are kosher for 4-person occupancy, with two double-sized Murphy beds and enough room around for a couple air mattresses if I don't feel like sharing a bed with one of my room-mates (i.e., never). There is a little mini-bar style kitchen facility and a bathroom/shower. I really, really, really like having an air conditioned base of operations right in the paddock.
Prices and minimum-night blocks can vary a bit depending on the schedule, so I just have to call and ask. For weekend events, things tend to sell out months in advance.