Visually appealing, the materials act dibasic. The caste principle enables uncomplicated planting. The water reservoir holds in my boxes (south facing, lots of sun) 10-14 days in late summer. The water level indicator works, but is not always easy to read (depending on the lighting conditions). I have white scraps of paper inserted into the glass tube, so that you can read better against white background, the red water level gauges. So I can already see from the apartment if I have to pour.
