See, I use a lot of browsers as well, though my main browser is PailMoon (Its based on the FF source code.)
As stated above, if you wish to go for it, then please do. I dont use IE for much, but I do open it for development. It has more security than ever if you have update it. (This I have tested.) So if you are asking if it is safe to use, for the most part I say yes. The only problem is that because it is distributed as the main browser for Windows, and most people disable "User Account Control" which tells you about any program that needs admin privileges (Read: Any part of your computer), because it is not convienent to them. At the same time, with UAC enabled, and using the latest version of IE and keeping it updated
, you should be fine.