As a person who did this, I'll help you decide with some simple questions.
Do you hate warm devices? The S4 gets hot compared to the almost always room temp Note 2.
Do you want to root it? No? Get it if the above doesn't bother you.
Yes? If you stay on stock kernel, then again, get it. If not, you might have some very annoying camera lag issues. If you don't use the camera a lot you'll live with it, but it might ruin some moments, or keep your friends doing awkward faces while the camera loads.
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Follow me on Twitter: @MohammadAG
Check out my Xposed modules
Send files with Android Beam™ on Android 4.1+: File Beam (Touch to Send)
Enable USB Mass Storage Mode on Samsung devices with SG USB Mass Storage Enabler
Use your flashlight at different brightness levels with Adjustable Torch
Enable Music Controls on your S-View screen with S-View Music Controls