I use Lichess from my desktop as well from my phone. Everything is fine but i don't like that the time control syncs between the two instances. On a phone I play slower time control as I can not move pieces as fast as I do on my desktop. So maybe it is a good feature to not sync time controls over different devices.
Otherwise, great site, I also recommend it to all of my friends!
Otherwise, great site, I also recommend it to all of my friends!