Transgo shift kit

i use it to go hunting qith in the fall and winter so im in rough terrian quite a bit and snow as well, i also use it to drive around as my daily driver, just drive it to work and back and the occasional trip the stores and what not, i pretty much use it for everything basically.
The owner of the transmission shop told me they did a few mods to the transmission to make it shift firmer and better and it does shift pretty good, i have been told a shift kit will maximize the transmissions life as well. keep it running cooler and such.