Shouldn't take too long to get used to it though. Of course if you have used internut exploder forever, there will be a learning curve.. ;-)
Seriously, it has been quite a while - like more than a year - since I ran into a website that required IE to display properly so given IE's negatives (security being the biggest, followed by non support of current internet standards, followed by its dismissal into 'unwanted stepchild' status with the advent of winTen and the new 'edge', there is no compelling reason to keep it around. Even on winAte... ;-)
Even Microsoft has abandoned Internet Explorer in favor of the new Edge.... for Windows 10...