I have had wonderful luck with these. Be on the look out for Tomato Bugs and lack of water. These were my only problems.
I usually liquid miracle grow every couple months.
This is an awesome way to get fresh tomatoes if you live in an apartment or have no yard. Plus you never have to stake these plants, gravity does all your work for you.
I have also grown them with herbs on top, like oregano or basil.....they go well together and are very usable together.