I have two friends who run the V1 and had similar issues (slow/no return) within the first 6 months. Luckily the fix/rebuild is easy.
I bought one as a spare since the price is so low. Compared to my crankbrothers posts, the return is faster, but the locking mechanism and overall function feel less refined. It’s a small difference, but noticeable. For the price I’d still recommend it- just be willing to rebuild a bit more often than other more expensive posts.
I love the simplicity of adjusting the travel. I also love the minimal packaging and the fact that this is offered as ‘post only’ without the lever.