Only thing I'd add is to try to get devices that can be flashed with esphome[0] for future-proofing. There is an onramp[1] for devices that can be flashed with Tasmota.
Also be very wary about devices that are not (verifiably) UL listed / CE rated, especially if the device is to be plugged into mains and tucked behind some furniture (or worse yet, installed into the wall). [According to internet folk lore] some of these can be grounds for being denied insurance coverage in the event of a fire or other damage [citation needed]. Personally, I don't mess around with random-china-devices and mains outside of the workbench.