I've been using one of these posts on my cyclocross bike for just under a year and a half. Great value and performance, but I've found that the paint/decals chip off super easily so it's looking pretty tired now. It's significantly less durable than an anodised finish, but otherwise I can't fault it.
Shop installed as needed bike for a weekend away, no problems but check your steerer length. Quality is really good on first look - bearings, machining etc. Fitted to a Genesis High Latitude with a longer fork and what a difference! So much more playful downhill, you can really push the front end in corners. No down sides on climbs or flat either. Got mine with discount, easily best vfm upgrade