I just wanted topost this quick video I pre-ordered the GHL Maxi during the all the Black Friday sales. I Had my eye on a DOS for a very long time, but couldn't get over the shape of the DOS. I may be unique in that regard, but i had purchased 2 DOS units and two DDR's and sent them back. I already had my eye on the GHL 2.1 Doser, so when I saw this new pump get released I jumped on it right away. I need to upgrade to a wifi controller, and i am not sure i want the new Apex, so I am hoping this Stand aloneunit will give me enough of a preview into the GHL world to help me make up my mind by the end of the year, when i want to purchase the new controller. I will do a follow up review, so please sub to my youtube channel.