Doyon convection oven question

I am in the process of building a new kitchen and dinning room for our training center and am looking to buy 4 double stack convection ovens. I am looking at several but am having a hard time finding much in the way of reviews on Doyon products. The model I am looking at is a JA28 it is one unit that has 4 oven units so in essence would replace 2 double stack ovens. Thanks for any input.