A serendipitous event: I was inquiring about someone's Burley trailer at a farmer's market. When they happened across me later the same day and asked if I hadn't been the one asking about the Burley, another couple asked if someone was interested in buying one! As a result, I am now the owner of a Burley solo. The hitch is so superior to the one on my old kids' trailer, that I am rather shocked by its simple design. Traveling further to buy groceries by bike is now possible.
Though it would be an unlikely distance travel buddy, the Burley serves extremely well around town. It carries a far greater load than either panniers or a BOB, however it has a tendency to "lurch", especially when starting from a stop.