I have an iPhone 4, should upgrade to the new iPhone se?

I have had the iPhone 4 for almost 3 years and it is slow and doesn't have very good iOS. The iPhone se is only $299 at some places and thought that was a good deal

The new iPhone SE is a HUGE improvement on the iPhone 4. It's faster, there are more apps, the camera is MUCH better, and a better user interface with iOS 9. Other than that, EVERYTHING is better on the iPhone SE.

Definitely.