I have about 30 "China" radios are (yes yes, some people have idiotic Hobbies :-)). Even professional mobile radio equipment from Taiwan, even Japanese Kenwood and Yaesu and Icom radios ...
So I can compare.
The UV-5R really has a very good sensitivity receiver.
Technically all the HF is only digitized and then processed with a digital signal processor.
Operation is a bit strange, but if you have understood once how Baofeng thinks then makes the whole thing again sense.
The device has a dual watch function, ie two frequencies "quasi" -Simultaneous received (the receiver switches back and forth quickly between two frequencies.
Scan comes with the stored frequencies.
Highly recommended is a visit to the Yahoo Baofeng UV-5R group
[...]
There are detailed instructions on how to programmed without software relay channels with storage.
Have fun! I'll probably still set a second device so that I have 2 charging stations :-)))
Greeting Wolfgang