As great as Edge is in the benchmarks, the engine beneath seems to be solid, the browser is shipping in a half-completed state. The lack of support for extensions I think is going to do more harm than good. I don't get the rush to release Edge, wouldn't it have been better for Microsoft to just hold off a couple of more months until the browser was ready feature wise?

I haven't been using the Windows 10 development builds, so I have yet to use Edge. As a front-end developer, I am excited we are getting a browser that seemingly supports all of the essentials (and prefixless too).