We haven't been there yet but it's on our list. We were hoping to do it this year but it's slipping away from us. We have anchored in Little Queenstown Creek before which is great - close to the mouth of the Chester River. You get beautiful sunsets at the channel entrance looking west over Kent Island, there's a small public dock you can tie the dinghy to and walk to town or to the outlets, and there's a dumpster there to get your garbage off the boat.
Definitely let us know how the trip goes, as I will be interested to help us plan our trip in the future.