Was for a few years-did all the major matches. Quantico, Perry, Creedmoor. I will say two things. It made me a much better overall shooter- and competed with the best shooters in the country. The depth of knowledge is deep in the sport.
However- the sport is drying up- and it is not filling the ranks with new shooters. Scholastic and Collegiate sports are dying off- and the main weight of the sport falls upon the service teams. It also has a rift of those that frown upon PRS and 3 gun style comps.
Overall it is a great sport to be involved in- but I would put the time, money, and effort into more “practical sports”. Especially those that are found at the local level.
FWIW - I was an AMU shooter for 3 years, and had a chance to shoot the sport while assigned there- prior to moving elsewhere in the military. Great experience and people- so dont take any of my gripes and a personal attack on anyone.