I’ve read a number of bad reviews on various Lenovo’s
Yeah, me too but the real issue with the Bluetooth is that the devices do not use batteries but must be plugged up. If you have to charge all three while travelling they become very problematic.
Given that you can get a smallish i5 laptop that has probably 4 times the RAM and 100 times the storage for less money why would anyone buy one of the semi tablets? The laptops do more cost less, accept more accessories and are easier to use.