solid choice on the compressor.. you should be very happy with the JC10
maybe to explain some of the negative reviews... I know right out of the gate Rolair had some issues with the drain valve however unless you bought from a dealer with VERY old stock you should be fine.. the old style drain valve was a threaded brass knob and the new one is a 1/4 turn ball valve. if you did end up with the old style then just contact Rolair, they will take care of it for you.
the only other issue i have ever had with mine is putting the motor into overload protection mode.. at first i thought it was broken but after a few minutes i was able to fire it back up.. this has happened to me twice only when im stupidly trying to run my CT, Kapex and JC10 all on the same circuit and while were cutting the compressor kicks on..
enjoy your new compressor!