Well Greg,
You asked for Pros and Cons. I think you may be getting the picture, one way or the other, depending upon how much you want to keep these plants. It sounds like you do (want to keep them). I would suggest you make sure your planters are sitting on concrete so the roots can't grow out the bottom and travel to parts unknown (my Father's nemesis was owned by his next door neighbor). And check them weekly to make sure the 'arms' haven't invaded anyplace you don't want them to be.
I admit, they are beautiful plants but.... I will never grow one. I don't need the hastle.
Daisy
