I agree with "Fletch' on most of the stated points. WWRride didn't however really address how he intends to grow: single netpot plants, sog or scrog. A flood and drain system has worked very well for me using SOG from cuttings, though I now use bubblers and scrog. With three plants per each in a 15 gal tub, DWC's speed makes up for time lost in pruning/training into the netting that is extended six inches beyond each side of the tubs . I'm able to have three tubs (9 plants) under each 8 bulb t5 fixture with perfect fit of space space. This method of SCROG also allows me to have a selective harvest of select buds that are ready early, without disturbing other tops.
It's been something of a work in progress to reach this point, with several half-failures using the "trial and error" method. If interested, there are tons of pics using google images searching scrog...B