Freemie Pump

Lindsey
I am a cheer coach and will have to be away for several hours at a time on a bus and sitting in the stands with little to no privacy, maybe in the stadium restrooms or on the school bus, but that's the best I can think of. 
I am looking into purchasing the Freemie Double Freedom pump because of its more discrete features.
Does anyone have this pump? Would you recommend it? Or does anyone have another pump they would recommend?
TIA 💕