NASA is a fantastic way to get a lot of seat time and instruction to advance your driving skills. For those who have never been involved you will start off HPDE 1 which requires basic instruction and ride alongs with an instructor in your vehicle. You then go through a series of instructional periods and if the instructor feels you are ready you can advance to solo driving at the end of your first event (HPDE 1).
Thereafter you are signed off from HPDE 2-4 by an instructor who takes ride alongs with you to essentially prove you are ready for the next level. Instructors are pretty much always available during events that can assist you in refining your skills in preparation to advance to the higher level HPDE if that is your goal. Each time you advance the leash is basically lengthened in regard to what you can and cannot do. Some people want to remain at specific HPDE levels or even those who may be more advance will track their vehicles in the lower levels (typically slower) to further refine skills.
There are a lot of good ways here local to get better at driving but imo NASA is hard to beat, especially if you want to become the best you can in the vehicle you will actually be driving all the time.
In short it is worth every penny you will spend however, it is more addictive than you may expect so it can get expensive quick as you go through tires, pads, wheel bearings, gas, registration, and membership.
