Stenner Econ T?

I am wondering if anyone has used this pump or if those with a Stenner Pump can tell my why I shouldn't go with this one. I like it because its not variable speed and has a built in timer. It is also only 8 dollars more than the recommended 45MPHP2.

Here is the specs. http://stenner.com/wp-content/uploads/2014/06/FSPECET.pdf

I had plan on going with the E20T4F.