Re: Browser emulator
That would be a shame, IE 11 has come a long way...
I still wouldn't use it as my main browser, but the bad old days are gone - and if you use a Windows tablet, then you pretty much have to use IE, Chrome is dreadful in "Modern" mode for touch and Mozilla abadoned making Firefox touch friendly before it got to the first release...
I use it as my main browser on my tablet, but I still do sensitive stuff and exploring new sites in Firefox (NoScript and Flashblock) and Firefox is still my main browser on my normal PCs.