8500 yen is the asking price, which is roughly $85, though exchange rates do fluctuate.
Excel Tokyo hotels, in my experience, are pretty well-appointed. They mostly cater to business travelers, but they're open all night, which fits the Roppongi area very well. Split the price with a buddy and you're getting a good deal on a solid hotel in an exciting part of the city.
The deal is open through the end of March. Check out Japanican for reservations.