The bed bugs will bite!
As a Starwood Preferred Guest member and frequent traveler I can say this was by far the worst hotel experience we've ever had. 
We stayed here prior to a cruise thinking it would be fine for a night's stay after a long flight; and the Sheraton Gateway was booked. I was under the impression it might not be as fancy as the other Starwood resorts but I'm by no means a princess and felt comfortable booking our pre-cruise stay here. 
As a frequent traveler and yes, tad bit of a germ-a-phobe, my husband and I always check the mattress in our room for bed bugs. It's something we have done out of habit for a long time after hearing horror stories about how difficult those things are to get rid of, not to mention how disgusting it is. 
I was HORRIFIED when I pulled back the corner of the sheet and saw the mattress corner covered in dried blood. I immediately washed my hands and pulled the luggage out of the room while my husband called the front desk. 
Twenty minutes later the bell man arrived and told us he was taking us to another room. When my husband said he requested the manager to come to the room the bellman told us he was busy and sent him instead. So we re-loaded up all our of luggage (which was quite an abundance for our 3 week trip) and went to another room. Before we brought our luggage in my husband went to find the bed and when he pulled back the sheets found an enormous dried blood stain that had saturated the center of the bed, so the process started again. With our skin crawling at the thought of the dirty rooms my husband again called and requested the manager come up to see what we had seen. We hauled all our luggage back down to the front desk where my husband waited for the manager for over 40 minutes; while I searched on my phone for other available hotels in the area. 
The manager didn't seem at all concerned with situation or the infestation of bed bugs and had no intention of doing anything for us until my husband insisted. With literally no where else to go for the night and a 7+hour travel day already dragging us down we reluctantly had to check in to a room for the night. 
Housekeeping brought up a brand new mattress that was still sealed and we inspected that, and then it was made up. The wonderful housekeeper came and re-cleaned the room while we were in it and was so embarrassed that this had happened. She had great pride in her work and was ashamed that we had been in two dirty rooms. We waited for her to clean and put the room together and then still had to get settled for the night. This "check-in" process was about 3 hours and the worst hotel experience i've ever had. I couldn't get out of there fast enough. 
I did take a photo of the corners of the first mattress, my husband wouldn't let me see the second in fear that we'd be sleeping outside on top of our luggage if I had seen it. I am so disappointed in the cleanliness and service at this hotel.