I really enjoyed the THV and I think you would benefit with the people going. Both you and your in-laws will have their own room. When we went with my parents, we gave them the master so they had privacy, which meant we didn't. The kids will have their own room with TV and there is more living space in the main area (big difference is that it has a more real dining area that is not pushed against the living room).
You are more remote, so if you spend a lot of time at the pool, that could be a downside. We stayed without a vehicle and were the first Villa in from the Grandstand path, it wasn't a big deal to walk over to the busses in the morning and even the other villas in the area wouldn't be bad. If you don't have a car, I would recommend requesting near the south bus stop. There is a quiet pool, so you do have options.