I tried it with a gallon jug method. The only thing I found out is it dries out quickly. It was hard to keep the plant 'happy' with the watering situation. Therefore did not porduce for me. I did not have much luck. JMO I think it will be ideal for those wanting a plant or two. I'll keep mine in the ground. I am curious to know if anyone has really done it with success.
My Dad owns greenhouses and last year he did some of those up hoping to sell them. They do require alot more water but all hanging plants require more water than planted ones. The did produce alot of tomatoes, as much as ones planted in the ground? Not as much. The three main things with them is:
1) Hang on a rugged hanger (they get heavy when watered)
2) Keep up with the watering
3) Fertilize frequintly