I've been coming to BJ frequently on business for last 5 years and stayed mostly in Grand Hyatt which became a home away from home. Also Regent and St Regis.
My current company have a corporate rate at Ritz Carlton, but I think it is still very expensive for BJ so I booked into Sofitel via Kayak then Skoosh. It's half my corporate rate at RC and the hotel is excellent. The rooms ae spacious, beds comfortable, nicely decorated, etc. The food choices are excellent - International mix, French, Japanese and Conatonese, although usual 5 star hotel overpricing.
I'd certainly recommend it if you can get a great deal online - less than a thousand rmb.