Gravity Dropper here, 5 years old and only had the plastic guides replaced once, strip down clean and reassembley takes about 20 minutes and do that 2 or 3 times a year, 125 and 25mm drops, slight wobble in saddle if you grab saddle, totally unnoticeable when riding, release mech is fixed point and only the saddle moves so no dangly cable getting in the way, remote drop lever functional and quite tough as its resisted many crashes without issur. Wouldn’t change for anything else and definitely the best upgrade I have made.