Yes, it is a pricey place where to crash for the night when your flight is canceled or delayed, but you have the convenience to be in the airport and for that you will pay. And the price is worth it when you have to wake up at 5:00AM in the morning to make the only flight available back home!
Our room was nice. Do not expect a view here...it is either the parking lot or the airport runaways which could be a treat if you travel with kids.
The restaurant Andiamo was a bit of a joke...you'd think it would be Italian, but it was not. Actually the description said it is an Italian fusion restaurant, which usually means you take one cuisine and infuse it with flavors from other cuisines. At Andiamo "fusion" literally means one dish from Italy, one from Asia, one from a steakhouse and some dishes "I think they could be Italians", but they really aren't. And the place is so loud! do not waste your money here or if you do noit have other options do room service. The food may be the same, but at least you will not get the noise.

I had to stay in this hotel because my flight was delayed. It seems to be a recently renovated old hotel. My room was on the third floor pretty far away from the elevator yet very noisy. It was clean but very small unit overviewing a parking lot. It seems that all rooms there are facing parking/driveway. You can't control temperature levels in the room and in my case it was very cold with no option to switch of air-conditioning. I was quoted a rate of $239/night for a 2 double bed room which is a rip off given what you get for your money. Even with a 50% discount that I got from the airline it is still overpriced. You'd think that for that price Hilton O'Hare could at least give a you free toothbrush and a newspaper but no, expect to pay $7 plus 17% service fee for it.

Booked this hotel since I was transiting Chicago for just 12 hours overnight. All I wanted was a decent meal. I couldn't get it!

Room Service simply did not answer the phone, and every restaurant in the hotel was packed and wanted 2 hours to find us a table. I tried telling the restaurant hostesses that I was a guest in the hotel - but that didn't help. Complained at Reception, but they were so busy that night they just couldn't care. Tried getting through to a duty manager but failed. None of the hotel phones were being answered that night. First time in my life I failed to get a meal in an otherwise decent hotel!

This was about 10pm, and all restaurants/kiosks in the airport were closed. Finally found a food court at the International Terminal that was open all night.

I sent 2 emails subsequently - one to the hotel GM and one to Hilton. Both remained unanswered.

An unbelievable experience!

Firstly the good..

Convenient Location (walk to terminals)
Comfy Bed
Room seems newly renovated

Now the bad. Internet is a steep $17.50 (I managed without but for $6.99 you could log onto the airport wireless service). A basic disposable toothbrush, comb and shaver set was $7 + fees.. Breakfast starts at $22. All things that are often free in other hotels. Basically they regard the room rate as a starting point, not your final bill.! Air-con was loud and ineffective. The first room they gave me was a weird shape and behind the lift shafts with a whooshing sound every time a lift went past, also a TV that wasnt even viewbale from the bed, needing a complaint and a room change. I was suprised they even had the audacity to try and rent that room..!

Overall when i checked out it was not a satisfying stay and I wouldnt choose to go there again