My husband and I have brought family to stay in a 2 bd and 3 bd Grand Luxxe Spa Unit on different occasions the past year. The 2 bedroom had a stove and microwave but no oven that we recall. The 3 bedroom had a stove, microwave and a toaster oven set in a cabinet shelf. The "oven" was not connected to electricity, so we took it out and placed it on a small end table to use. There is a coffee maker and blender. You should find enough pots, pans, and serviceware for the maximum number of people in the room. If not contact the concierge or housekeeping to ask them to bring the needed items. We prefer to cook in our room, occasionally eating off property or at the Taco bar in the Mercado. We have been able to saute, poach, fry and boil water to make rice, pasta, etc.
Before the Mercado was built, we would go to PV and buy groceries. I prefer to shop authentic Mexican stores because I like to explore, learn about and try local ingredients. The onsite market became our primary shop once open. The deli has wonderful cheeses, prepared meats and fresh ready to cook meat. The grocery has just about all a family would need for meal making- dairy, produce, sandwich bread, condiments, canned goods, juice and other beverages. We are from the NW and my son said the prices at the market, though probably more expensive than off property, are less than what he pays in the Seattle area. Factor in the cost and hassle of traveling off property and he was definitely okay feeding his younguns from the market. You will find a wonderful artisan/french style bakery, fancy desserts and candy shop plus a build your own frozen yogurt dish shop that is very popular. The liquor sold there is probably closer to US pricing than what you might see locally. IMHO the savings are found in buying South American wines like Chile or Argentina and common liquor brands. However, my fellas prefered to buy the ice filled bucket of beer from the pool staff.
I agree with others that a car in PV is not worth it unless you travel a lot off property and leave early. Cabs are reasonable and easy to get around. We enjoy going to PV and Bucerias. I have not yet tried the bus system. On the flip side, I would rent a car and have when staying on the Yucatan peninsula.
We have stayed at the Grand Mayan, Grand Bliss and Grand Luxxe. We really enjoy the Luxxe, which is why we bought in. The staff is top notch and we have found waiter at the Luxxe pool that has become our favorite. Junior goes out of his way to make us comfortable and provides superb service.
Hope this information helps.