Not only was the shipping super fast but the customer service in the online chat was very patient and very informative!
I have purchased the Dover key set as well as the Otis key set from this website.
Sadly i did not do the research of which elevator type I have had.
So i gave up and bought this key set!
Will be doing business again as USD have made a great impression with the fast shipping and outstanding customer service!
Please keep in mind that I reside in New York and the website ships from New Jersey!
Reviewed by: Evan Koulikov from New York.