The controllers have both been plagued by the issue of dust entering the analog sticks, making it drift. You can't calibrate this away (tried it). Nor did it for us help with a spray can of air to blow it away, but perhaps I was holding it wrong (snark). Had to send it away for repair and they changed both analog sticks.
A new set of controllers (ie two sticks) also cost almost twice what an official PS4 dualshock controller costs. A single costs about as much as a PS4DS. Also, the PS4 one feels so much more robust.
For a controller that is meant to be used on the go, I find the poor dust-resistance and high cost of replacement very off-putting. I get the feeling that they, or something else on the switch, is gonna break again soon.
Puh, sorry for the rant.