Pros and cons of cycling to work and back 5 days a week?

i do 14 miles per day, 5 days a week too. i feel fitter for it though i eat like fucken horse. i can't seem to 'pootle' any time really, especially on the way home where i will race the fuck out of anyone and impress the crowds and drivers with my skillz and speedz. :D

Can i get an Ahmen - repd!