Concierge.com's insider take:

Let's be honest: Many of the nicest hotels in Vegas want you out of the room and into the casino. That gap is where the Signature at MGM Grand defines itself. This nongaming hotel is comprised of three 40-story white-and-gold tinted-glass towers next door to the big green monster (the MGM). The first condo-hotel on the Strip, your guest room is actually someone's home, but you won't find dirty laundry in the hamper. When the owners are out of town, their rooms go into a rental pool, and with 576 suites per tower, there's seldom a shortage of space. Decor is usually of earth-toned fabrics, granite countertops, limestone bathrooms, and dark wood furniture. With kitchens or kitchenettes, HDTV flat-screens, and balconies (a rarity in Vegas hotels), it's a comfortable experience, especially if you opt for a two-bedroom/two-bath suite, which totals about 1,500 square feet (the one-bedrooms are also great). And if you crave that night of partying, MGM Grand is just a moving walkway away.