Wonderful hotel. Friendly staff, great facilities like a great German cafe and restaurant, pretty nice afternoon tea (setting and service is great, but food quality could be slightly better), and great pool and huge jacuzzi (but a swimming hat is non negotiable).
Location isn't great for west lake but if you know how to order taxis and avoid rush hour it's fine to get around. Some nice restaurants in the next door shopping mall like a Vietnamese and there's a blue frog too.
The breakfast buffet was wide ranging and pretty good, but the quality of most things wasnt up to true 5 star level.
I personally found the bed too hard, but after mentioning this they put a second mattress topper on it and I was fine after that.
A final negative is there is a bit of a dodgy smell from the toilet. But the electronic bidet somewhat makes up for that!
Overall I'd recommend this place though and would return.