Unity or Everything Presence One

I am eager to deploy some presence sensors and see lots of praise for both the Unity and the Everything Presence One.

Does anyone see one device being better or more desirable than the other?

While Unity is a bit cheaper (Unity: $39 + $7 case + $5 stand +$6 shipping vs. EP1: $64 + $8 case/stand + $16 shipping), the difference is minimal.

Thank you.

I am having a little trouble finding the unity motion sensor you’re talking about can you supply a link?

Of course (I should have included it in the original post):

Unity Sensor - All-in-one Human Presence Sensor for Home Automation – LoopOn

Anyone have any info?