Dirtest property - Time to fire housekeeping and update this property
I am well traveled and I can honestly say that this was the dirtest property. I've stayed at numerous Sheraton hotels and have found them to be inconsistent in quality. We stayed at a 4 star property in Seattle and it was great! However, the Sheraton Suites in Philadelphia were awful!! 
The public areas as well as the rooms were so dirty. Even the dark carpets and dark upholstery couldn't hid the fact that this property needs a good cleaning from top to bottom. I stayed one night ... but would never dream eating there!
Dust every where & you could tell that the housekeeping supervisor is not on the job! If so, she or he would see the dismal condition of this property and do something about it.The vents in the bathroom were loaded with dust. I'm sure anyone with allergies or asthma could attest to this fact. 
Overall, the property needs to be updated and maintained by a caring professional who realizes that the internet makes the world a smaller place and that good reviews matter & impact the bottom line financially.