I have been using it for six months as a hobbyist and it has a leak from the base connection to the container.
Money wasted.

I managed to try it only once. I have a very positive impression. It is lightweight and very easy to use, it includes different nozzles that facilitate spraying.
Large volume for spraying liquid (20 liters).
Its plastic parts seem a bit thin and I don't know how they will withstand over time, but I believe that with proper storage (in a shady place) there will be no problem.
Also, unfortunately, assembly instructions are not included, but there are similar sprayers and instructions on YouTube.
Otherwise, very satisfied, in terms of quality-price ratio.