No arguments over the quality of the 200 or helix or ecozone or herpkeeper or habistat or herpstat or... they are are basically the same some have more features some less but as I have my likes and Pit his but we both agree on the flexibility of porprtional units. An added bonus is using controls designed with reptiles in mind will only generate more products with reptiles in mind. That will only better the industry in general.