Do not buy those plant towers. You can't clean them and with any indoors situation, you have mold and have to periodically change the water. When you change the water, you wash off the mold. Problem is, the only way to change the water is to siphon with a hose, and then you still can't move the darn thing without having the very real potential of the plants falling on your head!!! (yes, personal experience). We were going to use it for the strawberries mentioned above because the very structure would prevent runner migration. It's easier just to clip the runners in another structure.
John