It is very convenient. If you have a large hand, you might not be able to take it off just by loosening the strap & you will have to unclip it. That is its weak point, because the clip is plastic & at some point, after a lot of use, it will break. This is the second one I have bought as the first one broke exactly there.

I bought it for the Mi Band 8 because the pin clasp had broken twice. The velcro is quite flexible and fastens over a wide range. I didn't have any issues with moisture (I shower while wearing it). If you open it all the way, it takes a little effort to take it off your hand (e.g., for charging), but that also depends on each person's body. Overall, at €8, I think it's a good purchase.

I was afraid that the clasp would break with water, but I was wrong.
Incredible fit, and I dip it everywhere without a hint of a problem so far.
Even if it lasts a year, I will be extremely satisfied with the abuse I put it through, and I will buy it again

It is the only one I can use, comfortable, absolutely safe, minimal and elegant compared to all others. I removed one star because after only a few months the velcro stopped fastening well and I bought a second one. I expected it to last a little longer in perfect condition because I do not abuse it and do not get it wet.

Beautiful and quite economical strap. Applied without any problem on the band.
The first one purchased arrived broken, which proves that the plastic is cheap. Fortunately, it was replaced without issues.

Good application, fastening with Velcro and not a magnet (even better in my opinion). Discreet appearance. The only concern I have is how quickly the moisture dissipates (hand washing, swimming, etc.). Overall, it is a good choice.

Personally, the strap of the Xiaomi band never fit me well as I had to tighten it a lot to prevent it from moving, which resulted in discomfort and left a noticeable mark around. Well, I haven't worn this particular strap for even 10 minutes and I can already say that it is a must if you have a Xiaomi band. Comfortable, elastic just enough, and it keeps the watch in place without having to tighten it excessively. And it looks nice too. If it didn't have the small plastic at the end that helps you grip it, or if it were smaller, it would be perfect. It mentions something about a magnet, but in reality, it secures with Velcro, quite well. Now we just have to see how it holds up over time.
EDIT: about half a year after the purchase, it doesn't close well and keeps coming undone with minimal movement... Very annoying. I hoped I wouldn't have this issue so early.