Kenya trees don't grow as prolifically or as problematically as xenia. Xenia are tough becasue they walk around the tank when expanding, and even when you cut them, the part you cut and any flesh left on the rock will grow back to full pieces.
Kenya trees grow slower, and when you pull the pieces from the rock, they don't leave any flesh behind, and are easy to keep track of becasue they don't walk. They only become problematic and drop new offspring when they're huge. I used to have one the size of a basketball when fully inflated, and it would drop new pieces every few days, but they were easy to corral into a frag box and sell.
Still a fun easy coral to get started with, and much more tolerant than LPS.