I used the site for two seasons and i must say for myself that it's a piece of crap. the pins are not built strong enough; they will bend by just touching them. the housing is made of plastic which wears out over time. the micro adjust on mine basically fell apart after the second season. and like greg said, during sun-down it is nearly impossible to tell apart the lower pins from one another.
get yourself a cobra sidewinder or something that will take the abuse of hunting and that will allow you to shoot at the best time... sundown!