BZ Products 500MPPT CC

Wanted to see if anyone had expierence with either the 500MPPT Charge Controller or any of their charge controller products. I am thinking of subsituting the TriStar 45A MPPT with the BZ Products 500MPPT for our product line. The TriStar has performed fine, its that the BZ Product is 50% cheaper and its cheap because I think it doesnt have all the custom settings and the use of MS View. Thanks in advacne,

Scott