Very comfy once it is on but it is a squeeze getting in there...with the hoop in there isn't much room front to back and even with my small (7 - 7 1/8) head the inside of the cheeks rake down my forehead. Jimmy no they don't light up...the RF is the stock DP unit and isn't hollow. My forte however is radio control stuff and small electronics so on the next one the RF will lower and the led's will flash along with the screen on the inside of the RF.