Good point from Kru Nick Bautista...something a beginner to the sport may want to consider.
"Just a thought...
Training 1x/week= Little benefit. Our bodies get in good shape when we
spend more than we take in (food). Training once a week simply isn't
enough to combat the other 6 days of sedentary life style and food.
Skill wise, it's not enough practice or instruction for any technical
improvement to occur.
2x/week= Some benefit. Depending on how
hard one trains when they attend, 2x/week can be very effective, BUT you
have to bust your ASS. No breaks, no slacking. You also must be very
diligent with your technique. What you lack in time, you can make up for
3x/week and up= Much benefit. Your training more
than the average and will most likely experience above average
conditioning and technique. Be careful to not overtrain and under
nourish. Eat Nutrient dense foods and REST. Those who train this often
are like high powered machines that have needs. Fail to provide the
needs and your machine will fail you. Get proper nutrition and proper
rest and improvements will grow by the bounds."