Even the Y111 Katya has quirks. Here is the fix for the top three user complaints:
Using a lattice of micro-adjustable nozzles, the Y111 ensures a 2mm thick "veil" of water flows uniformly across the entire cascade. This creates the visual illusion of a single, frozen sheet of glass, rather than a trickle. Y111 Katya Custom Waterfall
The "Custom" white noise setting on the Y111 increases reported worker concentration by 38% (according to internal acoustic studies). It serves as a natural visual barrier in open-plan spaces. Even the Y111 Katya has quirks