the envy is a fast, responsive kite. if it "flew like crap" you are doing something wrong or your kite is messed up, period
I have managed to tune the kite right plus learned how to use it. I find the kite really nice for wave riding plus it jumps really high. I tuned my rear lines to the shortest position plus ride on the light wind setting. Turns fast when i want it to turn and stable when not turning it. Had some great sessions on with my kite. When over powered and having pulled the depower strap beyond great steering i make sure to sheet in when turning.