Standard Residence Inn Experience
I recently stayed at this Residence Inn while visiting relatives in Mt. Holly. It was very easy to reach from Route 85. The hotel was surrounded by a number of restaurants, drug stores, etc, so it would certainly be easy to pick up some groceries or forgotten items. We found our room to be clean and spacious - exactly what I've come to expect from a Residence Inn. Upon arrival, we received a personalized hand-written note (perhaps becuase we are frequent guests?) welcoming us to the hotel with a little bag of goodies. It was a nice touch and appreciated. We had breakfast in the large common room and found it to be more than adequate: scrambled eggs, home-style potatoes, made-to-order waffles, cerals, juices, yogurt parfaits, buttermilk biscuits, coffee, etc. It was very nice and the attendants were courteous and helpful. 
It should be noted that the area is very busy and can be quite loud. As a previous reviewer noted, there is a firehouse nearby so there were frequent sirens and our room backed up to a fast-food restaurant drive-through which could be loud at times. For trips to Charlotte, I prefer the Residence Inn Uptown, but I would certainly recommend this hotel if you require accomodation near the hospital or research park.