IoT devices can be fine, but there are lots of companies involved in it that don't know what they're doing and would be better off staying out of the market. I always advice friends / family to look for upgrading capabilities, ability to do useful work when not connected to the Internet proper, user control (do you own this device or effectively borrow it per licensing etc.?), and other similar things before purchasing any IoT device. Some IoT devices are great, but some are abysmal.