I installed the Tapo S515 in a 3-way setup and it works flawlessly. The Matter certification made pairing with my smart home hub quick and hassle-free, no extra bridges needed. It handles 3-way, 4-way, and single-pole wiring, which gave me flexibility during installation. The switch feels solid and responds instantly to app and voice commands. Setup instructions were clear enough, though I'd recommend basic electrical knowledge. Overall, a reliable smart switch that fits neatly into an existing multi-switch circuit.