Stayed at the new (opened this April) JW Marriott in Xi’an for 2 nights on a corporate rate. Received an upgrade to a corner Executive Suite with a great view of the city, and the hard product was quite good.
The restaurant breakfast buffet was comprehensive, with multiple hot dish stations (eggs, noodles) and a large amount of pastries. The evening meal selection at the lounge included many appetizers, mains, and desserts - more than enough for dinner.
Location-wise, about 30 minutes from the city centre via metro, but attached to a large mall and only 5 minutes away from the nearby metro station.