I grew the fish chiles last season.
IMO they were prolific, the stems kinda grew out like a thai or lemon drop would & kinda tall & bushy (taking my location into consideration)
as for taste I cant really comment on it cuz I havent ate enough of it yet to make a real call, still have alot of the red powder left, I tend to use other chiles before I use the fish chile. sorry.
as for ornamental, yes the striped color on the pods is kinda cool, as for the leave color, its ok.
if you're looking for a ornamental plant, look elsewhere instead of the fish chile. yes they're neat looking but thats it! neat!