Unless you have a farm where you could plant the Jamun away from all structures, keeping them in large pots is the only option as their roots are quite destructive and the juice from fallen fruits could stain permanently. People also report that the juice could also be corrosive to metal.
In Florida, you could find trees along highways and even at Disney around Animal Kingdom park for example. So quite invasive.
However, they are quite popular in India and SE Asia and I'm quite fond of them. I grew up with these so I'm a bit biased here. The fruit has astringency taste only if not picked completely ripe. You tongue will turn deep purple after eating a few of them. I bought a grafted tree of about 5 ft tall and it fruited a year after. It's a big size fruit variety but I don't know the variety name. The taste is cherry with a bit of tart and a little astringency if not completely ripe.