Extremely poor reception (while other small devices have wifi signal - this one has nothing)
I ended up making an extension cable and placing it away from the rest of the machine to catch the signal, so now it works as it should.
The app is very bad and slow - you have to wait for it to load every 2-3 actions you make.
Also, it doesn't have an option or I can't find how to automatically cancel watering if it rains or if it is going to rain. (which is the whole purpose of checking the weather)
Overall, it does its job and waters reliably, but if you want something that you have to deal with frequently and adjust, I think there are better options.
Immediate connection with Home Assistant (provides switches for valves and the ability to delay for X days for programs), so weather automations can be set up there.