Well made and looks good at first examination. Fed all my pots and baskets and was surprised to find no change in the feed level in the reservoir. Turns out that the hose water dilutes the contents of the reservoir not depletes it. When the reservoir solution turns from dark blue to nearly clear, you have used all the feed. None of this is explained on the packaging, you need to search YouTube to find a very American video that explains it. I have no idea whether the feed concentration is consistent throughout this process. I also used 500g of feed very quickly!
I also bought it as recommended for lawn food. The lawn food solution is pale green to start with so how you are supposed to distinguish between pale green and very pale green I do not know.
I will stick to a watering can for plant food and the pre-filled packs of lawn food (which are very good.