I have installed several different types of central vacuums and these are my favorites so far. Fit and finish are excellent. For example, they are equipped with "buttons" for covering screws and screw holes. I would definitely buy them again.
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review
Xiaomi Mi Robot Vacuum Cleaner 1S Global Robot Vacuum Cleaner, white
389 Review
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, π€ Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review