New pressure gun/hose setup

With the season coming near its time to start ordering new gun and hose setups. Recently picked up 2 150’ pressure reels to mount in our truck, i am looking at ordering a couple MTM Hydro M407 guns (https://www.pressurewashersdirect.com/MTM-Hydro-10.0001/p8445.html) however, i see they come with a 3/8" thread inflow instead of a quick connect. Does anything thread the hose directly into the gun, or does everybody buy the quick connect for the hoses/guns? In the last few years we have always used normal quick connects but would not be against changing. Pros/Cons?