munchkin vision 2

clammy

Just wondering if any one has installed a munchkin and used the vision 2 set up .I know that these are speced to use belimo 3 way valves and wondering about the results and the over all performace of this set up .Looking at a second radiant system on a all ready installed munchkin ,though of removing the manul mixing valve and up grading to the vision 2 and doing constance circ .Existing is garage the second will be basement and possiblablly some add on for a tiled kitchen over a unheated crawlspace just to take the chill off the tile .Thanks and peace clammy