I'd be interested to hear about these hot spots though (if you've blogged about them anywhere?). I've generally been quite pleased with Microsoft's browser effort in the past couple of years. Safari is quickly travelling toward becoming the next IE9 with the kind of weird bugs I've come across recently.
That makes IE11 even worse since it hasn't abandoned compatibility and still performs incredibly badly. Maybe Microsoft is deliberately sabotaging it to move people towards "Edge".
Microsoft is stuck here: they want to move on to modern web standards, but they can't afford to piss off their corporate customers.
Their solution is to split the web browser, shipping Edge for the consumer market (and the modern members of the business market) that wants to interact with the modern web, but still continuing to provide IE11 along with the OS to keep their corporate dinosaur customers happy.
Edge (the version number is 20) is available only for Win10.
I have no idea if it will be successful, but kudos to MS on finally getting off the IE trainwreck. Now if only they'd release it for 7 and 8.