I recently stayed 4 days at this "4-star" hotel.
Fair Warning: The map provided by hotels.com at the time I booked the hotel was inaccurate, and showed the location directly on West Lake. It is almost 2 miles away from here, with few restaurants or shopping in the vicinity, and getting anywhere near the tourist destinations is a huge hassle.
Overall, the hotel was OK. While the outside of the hotel, the lobby, and the restaurant are all very nice, the rooms are far from what you would expect of a 4-star hotel in the US. The beds are quite hard, and the decor is somewhat outdated, but the room itself was very clean. The staff did their best to accommodate me during the stay. The first room they provided me with was next to construction, and rather noisy. I only had to ask once, and the staff was very helpful in helping me choose a quiet room.
Overall, I would recommend for business travel but not tourists.