From IMDB:

A man undergoes an experimental treatment to improve his life, only to be replaced by a new and improved version of himself, and must fight for his wife, his career, and his very identity.

From Netflix you can stream all 8 half-hour episodes of this series.

Paul Rudd plays 2 roles at once, namely Miles Elliot and his clone. There are comic moments. But it was the plot that was for me quite original. How on earth would the conflict between his two selves be eventually played out? Along the way expect some foul language, some sex scenes, and a wrestling match toward the finale.

Would you want there to be a clone of yourself that was somehow an improvement of your personality? Enjoy the basically innocent fun.