URL up your alley:

Here is a link that might be useful: taste of goumi

To add a few things from my neck of the woods:

1. Robins LOVE them. You have to protect them or lose them.
2. Beautiful and manageable. Nice ornamental, at the least.
3. I thought they were a slightly sour cherry. (Maybe my tastebuds aren't sophisticated enough!) I chewed 6-8, spit out the seeds and then put the pulp in a 7-up with a twist of lime. Just like a cherry limeade.