(This review was collected as part of a promotion.) I was so exited to have been selected to try this electronic deadbolt, in exchange for my honest review.  
It took a little longer then expected to install. I was having some difficulty aligning it so the electronic part was satisfied and finally allowed me to program the code. 
Overall the product is working well. It does take 4 double AA batteries, hopefully they don’t need to be changed often.
The design is nice and matches my already existing handle.