Environment Controllers - Do you like yours? Would you recommend it?

Environment Controllers - Can I get some opinions?

While I have used CAP and GreenAir environment controllers before, Ive never owned an all-in-one setup and I am not very familiar with them. I am curious to know what experiences people have with their controllers, if there are things they dont like or wish they had, problems, etc.

Requirements : My general requirements are CO2 managment and detailed control of fans, dehumidifiers, and A/C. I dont need anything ultra fancy, but I have about a $700-$1000 budget. Currently the CAP PPM-3 monitor has been great for CO2, but Id like to use that monitor in another room and integrate everything for my 16 bucket hydro room which requires a more controlled environment. Ive always had good experiences with CAP products and my friend raves about PlantPro controllers, but at $1300 its a little beyond my budget. That is unless its really worth that extra $400. I must have a digital readout for the CO2 PPM. A portable CO2 monitor would be an extra plus but is not neccessary.

Thanks for your time guys. Id like to limit the responses to people who have actual experience with the product.