I work in the IT support field, I help people use the right programs so that they can work more effientiantly and more secure. IE has less features than firefox and chrome. The features firefox and chrome have are considered as "standard" features that every browser should have. IE doesn't not have these standard features, instead it has less.
Some websites have features that aren't included in IE, which means you can't even view the website. It also has lower security system than firefox/chrome.
I am just advising you not to use IE. But its up to you.