Just switched from mobile to my Macbook Pro on Chrome. Nice UI and everything seems good here, Andrew!
Changing username, as well as fulll name, worked just fine for me, in my Chrome desktop browser. Good stuff.
Signup worked great and painless, loved the discobot intro session. Thanks a bunch for creating this forum Andrew, and great choice of Discourse, which seems really featureful and usable. Look forward to using this!