Scientist (in the applied math department of a Paris area university), married and father of 3.
Experienced France-based player.
System: French standard (5-card majors, strong NT, multi 2!D, 2M weak 2-suiters) with US twists (forcing 1NT replies over 1M openings, Jacoby 2NT, 2/1 almost GF) and many specialized treatments.
Benefits include:
Plus... it's free!