I had the half doors on my TJ. I got tired of the canvas doors with the plastic zip-up windows, but I couldn't afford full steel doors at the time, so I bought aftermarket fiberglass upper half doors. They had a sliding window, that when opened the wind would pretty much blow behind you as you drove...which kind of defeated the purpose of having the window opened. They were fine when I lived in Syracuse where it never got very warm, but in Philly (and with no A/C) it was brutal. When I saw the half doors on JL, I liked them initially, and then it dredged up all sorts of bad memories.