Since I am running 2.2 Conti Trail Kings, I primarily use 16gr CO2, but this is a good pump to adjust pressures and refill if you have a tire burp.
I already had to use it on my road bike (filled to 100psi) and twice on my dirt dawg. It is solidly built and the gauge seems accurate. I'm glad I purchased this, I only wish the price wasn't as steep. I definitely see this lasting for years to come.