Bought the clock over 1/2 yr. ago and is quite satisfied--there are 13 preset & 10 manual set options; in addition, the simplicity of the clock makes it unique. The only thing i don't like about is: the hourglass option is missing, and there are too many delay modes...wondering if dgt will ever have a dgt na2 (including the hourglass option) available for the chess-playing public. If that is the case, I'll be delighted.