They taste bittersweet,..like Damsel or Plums and there are a huge amount of fruits on a tree,..mine was too tall and i had to remove four foot last summer,..only because the yellow flowers would be out of reach,..and sight.
Some images of the fruits when almost ripe,..1st picture is May 2015,..second is July 2013 so never predictable,..of course the fruits are green today which is far too early