I thought it about time to have a try on my Android Nexus 7 2012 with its yesterdays 4.4.4 update. Chrome browser.
First impression is that everything is slow.
My Mapped Synths. Starts at zoom=1. Does not show all synth dots where they should be. They do pop up while moving the map.
I expected that tapping on a dot of a set of synths would zoom in, just as happens with a mouse click in IE11 Win8.1 desktop. But no. A thumbnail of a synth within the set shows. Doesn't seem desired behaviour to me.