It grows plants well, I'll say that. I'm going to be trying to get 6 plants to harvest next grow, so we'll see how that goes. I just let these 4 go and they filled the tent. I won't do that again, because there isn't much room left to get to all sides without turning the whole system around. Plus, I didn't really do any pruning or training, other than a couple of stretchy stems that were trained sideways early in the grow.
The system grows roots really well. I can't wait to see the total mass after harvest. It looks like more roots than water now, just peeking into the top. The spray worked great 24/7 the whole time (since Oct) and there weren't any problems with the system at all. The one change I'd make would be to put a clear level indicator hose instead of the blue-tinted one they use. When it's in shadow I have to stick a little flashlight behind it to be sure I'm seeing the water level.
Thanx for the answer bro. I just talked to a guy with the RF66 and said it was a good system too. Didn't you consider a fload and drain table too.