Very nice finish. Strange that he gave you the Queen instead of the Rook.
I remember my first somthered mate. It took me seven years to get one.
It was in a league team match. I was playing the C board.
The lowest board of the team. It was in San Quentin Prison.
http://www.chess.com/forum/view/fun-with-chess/my-time-at-san-quentin-prison

Dear All!
I played a tournament today & for managed first ever smother mate. The icing on the cake was that my opponent had written me off citing that I have too "few pieces" to mate his king. And here i went on to sacrifice my queen to mate his king.
Feel free to comment or give suggestions!