I've been to a few different cobblers in and around D.C., so I have a decent number of comparative examples of Peter's competitors. I can tell you no one holds a candle to him. Whether it was cleaning up my wedding boots, fixing a pair of improperly dyed shoes, fixing my wife's heels, or cleaning up some suede, all of the items he's worked on have looked brand new after he did his magic.
Maybe more importantly, he has impeccable customer service, is always straightforward about what is possible, and makes it very easy to communicate with him.
You will not find a better cobbler in the city of D.C.