I have used Revos mini on all my printers for as long as they have been available and trouble free. I never used an Aliexpress one though, only the real deal. I think they are a fantastic and nozzle changes are just seconds and that is it. And now with my touch cartographer I do not even need to calibrate the z offset anymore. Has anybody ever printed with a 0.15 nozzle before? I have and it is amazing(ly slow) high definition!

Yes like
@claudermilk said, they are not the fastest but mine have been absolutely without any trouble. I use them in combination with the orbiter V2, another favorite of mine.
The only thing I have against them is the price of the nozzles and it is the only reason why I am not running them with hardenend nozzles for abrasive materials. For that I just bought a Voron zero with a dragon HF on it so I can get hardened nozzles for that in 0.8mm.