Yes, with selenium you can actually watch the entire test happen and see where things go wrong. Very easy to debug and understand but PhantomJS makes it really

Yes, with selenium you can actually watch the entire test happen and see where things go wrong. Very easy to debug and understand but PhantomJS makes it really tough to find out why something failed because its headless. Sometimes I would try to take screenshots to figure out what was going on and even that would fail at times. Maybe you'd be able to run more instances with PhantomJS compared to running Xvfb and a real browser because of lower memory consumption. I don't know if this is true.