using aero garden

Has anyone used aero gardens? Would it be better if i just used one plant?

the little aero gardens that you can buy online or at wally mart or target?....i bought my wifey one....the aerogarden 3.....i wanted to use an auto seed in one of the pods....but she wont let me......i actually seen a couple peeps doing it on youtube....but they had the aerogarden 6......