I've stayed at this hotel three times, months apart, and every stay has been identically problem-free. As I travel more than 30 weeks a year on business, I've come to appreciate a property that does what it promises, consistently. I consider this hotel to be a haven in a high-stimulation environment. It's comfortable, attractive, quiet, well-appointed, and in good repair. They have two PCs available for checking email (they're a little grimey but they work, so bring some waterless handwash if you're freaky about this...) As other reviewers have mentioned, they offer a 24-hour free airport shuttle with a friendly driver - a real benefit - and free parking if you have a car. The breakfast is only complimentary if you've earned it as a Hilton member, but even if you have to pay for it, it's not too bad a deal. All in all, if you're not interested in the cost, crowds and craziness of the Strip, this is a very fine place to park. Plus, you get a Doubletree chocolate chip cookie when you check in!

My partner and I made our reservation via the Doubletree web site a week in advance of the Easter weekend in LV, at $99 a night, for a 4-night stay in a double-bedded room. (We chose 2 double beds, just in case the king might be squishy or bouncy.)
Our room on the 6th floor (#639) was well away from the elevator bank and noisy drink & ice machines. The room faced north, toward the Strip (shimmering at night) and overlooked the parking lot and the 215 Loop. Blackout drapes (with the added assistance of a few pillows) blocked the glare of daylight (and lamplight at night), so our room was blissfully dark.
The beds were excellent. Nice linens, duvet, & pillows. No problems adjusting to a new bed. Great sleep.
Since we drove from LA, we brought along a small fan & together with the a/c unit, we heard no additional sounds during the night.
Only complaints: We both wore white socks in the room - they were noticeably blackened by the carpet. Wiped up drips from the bathroom floor (neat freak) and the towel was streaked with brown.
To end on a good note: Laptop-size safe in closet. Lots of space to relax and surf the Internet (wireless) on the lobby level. Didn't use the wirless access in the room. Clean workout room with 2 treadmills. Free parking. Shuttle to MGM Grand. The hotel employees very pleasant and courteous.
How could you not like a place that gives you hot cookies when you check in?
We WILL DEFINITELY stay here again when we visit Las Vegas.

I stayed at the Doubletree Club from Mar 25 to Mar 30 on business. A rough start where they had lost my reservation, but upon finding a room that matched my original reservation, I went upstairs. Carpets are a little worn and the furnishings were a bit out of date, but very clean.
I had room service a couple of times during my stay and although the menu is limited, the food was okay. Delivery times matched the estimate given when the order was made.
This is a non-gaming hotel so there is no problems with meandering thru the casino to the registration desk. If on business, I would stay here again.

We booked the Doubletree during Nascar weekend as a less expensive alternatvive to the strip. The wonderful thing was that they offer free shuttle service from the airport and free service to the MGM until 3 AM on the weekends. The staff were wonderful, the beds were cozy and the location was nice after partying on the strip. We were pleased with our stay.