RC L.wrote a review of FOX Racing Shox Transfer Dropper Seatpost Lever Assembly on May 18, 2017
Familiarity: I've put it through the wringer
The good: It works and does what it is supposed to do. Fits nicely underneath the brake like a Front D shifter. The not so great: It doesn't have the most friendly and durable design. When compressing the lever, the actuation bends the cable housing at a ~60 (?) degree angle, the prolonged use of this will begin to fray the cable housing. Ergonomically, its good, but the lever itself isn't too fixed and becomes squeaky, nothing some dry lube can't fix though. Finally, to get real "nitpicky" uses the small 3mm (?) hex to clamp, which isn't a big deal its just a pain to change components with 4 different sized bolts, I like to keep them close to the same or spec on Shimano. Overall, it gets the job done, but I think there are some other brands for levers to use with a Fox Transfer dropper that are better designed, have better actuation, and won't fray the cable than this model. Also for better value plus the same nice under the front brake style. In essence, I think you can get a better lever.