Sheraton Greensboro at Four Seasons
As a plat I've been upgraded to a 2 room suite on both of my stays here. (It's pretty obvious these 'suites' are used as seperate rooms during high occupancy periods.) The two room suites are smallish but do include a micro and fridge IIRC and a second bathroom. Furnishings are a bit older and typical for a Sheraton. Bathrooms are not huge in the suites I've had but fine for me. I know they have some upgradeable rooms with whirlpool tubs in the bathrooms and these bathrooms are much larger.
The service I've encountered at this property has been excellent. The club lounge is on 23rd(?) floor. Nice selection of evening snacks. Adult beverages = $. I have not tried the club lounge for breakfast. A small problem I had with the TV was taken care of in less than 10 minutes.
This is a converntion property. It is connected to the Four Seasons Convention Center, so upgrades could be tougher to get if you're there when the property is full. Parking is free. The property is loctaed next to a mall and there many decent resturants nearby. Access is also very easy to and from I-40.