You know what the app does when you press deny? It just crashes. Bei (wirkliche sehr) starkem Tastenanschlag hört man die Tastatur sehr. It is easy to assemble and is easy to clean. I misplaced it and had to get another due to the fact I am in sales and travel a good bit. It is reasonably priced and makes a good gift. The RGB remains the same. The color is perfect, grey goes with everything. My only gripe with Keen is that their sizing is inconsistent. Overall pleased with these shoes. No issues with your feet getting too warm or feeling closed in like they would with cloth slippers.