I am a Diamond and posted my recent experience in Cypress, CA, the same Woofin chain this place belongs to. I had a very negative experince in Cypress, and mentioned it to a Diamond friend. He insisted on staying at this place during his recent visit. I visited him a few times while in Emeryville and same comments applies to this place as Cypress but this place is a bit cleaner.
I think in general, Hyatt jumped the gun in selling the few Woofin properties under Summerfield Suites brand, they are really not ready.