the 850 is a great remote... i prefer the 950 and 3000 mainly for the use of variables...works great for epquipment that does not have descrete codes...if all your equipment has descretes then the 850 is right up your alley. and is pretty easy to program..harmony is nice but i prefer more programmability...but im a custom installer and i program these things everyday almost so choose the best one that suits your needs.