Now speaking to performance, I have no qualms. It is a common complaint of Reverbs past that in cold temperatures, the post could be slow to activate and respond. I most recently rode in sub freezing temperatures, and didn’t notice a difference. The speed of response is something that RockShox increased slightly, which felt great. There is also a reassuring thud when the post hits the top of the stroke. So you know for sure when it has returned. When activating the controller, the button operates just as you would expect. Press and hold until the seat drops to your desired position. Or push once to return all the way up, allowing for infinite positioning within the travel of the post.
The elephant in the room regarding performance, is battery life. I use my dropper a lot, so I was interested to see what life I could get. RockShox states up to 60 hours of use on a full charge. When I first installed the post, I fully charged the battery. After the 3 months, the battery was flashing red, which means less than 6 hours left. Granted this was the ride in sub freezing temperatures, and all batteries hate the cold. But on the positive side, I threw the battery on the charger while I got ready for my ride (~45 min) and the battery had charged back to the green state. (15-60 hours of use) A full charge is said to only take 1 hour. The controller battery is supposed to last up to 26 months, and uses a cheap wafer style replacement. If the controller battery ever dies on the trail, you can reach down and hit the button on the head of the dropper to activate the internal valve open. Then you press the button a second time to close the valve. So if the controller ever dies, or gets destroyed while throwing a whip through some trees, you can still use your post — albeit more complexly. If the battery on the post dies on the trail, and you don’t have a spare, you’re SOL.
As far as maintenance goes, there is virtually none. RockShox says that if the post sits unused for an extended period of time, it could be reluctant to actuate the first use. But will get better after a few cycles. As mentioned before, if you ever get squish or play in the post from extended use, you have the vent valve on the bottom to completely fix this problem. I do wish the vent valve was located at the top of the post, but there is already a lot of hardware taking space up there.
Compared to other dropper posts on the market, this one performs very repeatably, and quickly. But not so quick to make an accidental encounter with my bottom side a damaging event. Overall, I am very pleased with on trail use.