I like them because they’re smaller than the NodeMCU and you can choose how to solder the header pins on (or don’t bother with pins at all).
They also have the double and triple bases available, so you can make your own modular systems and easily swap things in and out, like this, which has a D1 Mini Pro, a Relay board and a Proto board:
Because they’re plugged into sockets on the triple base you can pull components out and replace them easily.
I did a Pros and Cons comparison here:
Pete.