I've been using zepto in a project for a couple of months and so far it's been pretty solid. It's true that it does not achieve feature parity with jQuery, but

I've been using zepto in a project for a couple of months and so far it's been pretty solid. It's true that it does not achieve feature parity with jQuery, but it doesn't pretend to (and I don't think it ever did). It does successfully mimic much of jQuery's core functionality on Webkit browsers at a fraction of the file-size.