I don't use my current editor for anything but editing so ability to view page is irrelevant to me. I have my PC set up as a simple server with IIS and PHP and can see changes immediately via local site using any of the browsers I have installed.
The only missing thing I've found so far is the ability, as in Dreamweaver, to drop down an options list when I type an ampersand. I can't find an add-on that works and does the same sort of thing, it would be handy but by no means a show stopper.
I'll probably use it when I have to do some site updates early next week and see what's what.