I do like the setup although it can have drawbacks--each plant grows its own way so I have to check ph seperately in each one--ph stayed very stable all the way through grow but went to town in the blooming phase so had to check them often. Once I set them up rows with irrigation tubes I discovered that you really can't move them around too much so I had to really be careful stepping around them until I bought a bunch of those adapters that can turn the flow off to each one. Now I can unhook any one module from the group and change it or switch a few modules around to get the light better so I really liked that cause as they grow they really start taking up the space and require moving around. This was my very first grow also and I was absolutely blown away by the results!! I don't use a chiller or anything--we have central AC and I had a HUGE heat problem in that room with the 1k watt light (had the central AC running AND a window ac too--nice electrical bill the first month) until I bought an inline fan that that works like a charm to draw out the heat. Now the room stays at 74 F. with just the central on at normal (no window AC needed) and the water at about 70.
PS--happy to hear my plants look happy and nutrient balanced--hopefully they will be sharing that happiness soon, lol.