I bought this lens after a dilemma between this one and a similar one for my DSLR camera. In the end, I decided to buy this lens because of its low weight and water protection it offers. The reviews on YouTube also played an important role.
After one month of owning it, I am really satisfied 100%. Size and weight are very important factors for me as I like to walk in the mountains. After all, the best camera is the one we have with us. Image quality: very satisfied throughout the focal length. Tremendous sharpness, and I easily achieve a steady image handheld at very low speeds. Tremendous stabilization, and quite bright at f5.6 for night shots. Very fast and silent focus.
In summary, I am very satisfied with the purchase, the ease of use makes you want to go out and take photos. If I had to mention something negative, it would be the somewhat tight feeling of the zoom ring.