I'd have to agree with Southwest Rancher. They are good, but not worth the wait fir this fruit. Plus, they are dioecious, so you need to have more than one tree. I have one, about 5 years old, but no telling what sex it is. Not sure I will keep it, though.
The taste is good, but there is so very little pulp, it's just not worth it. Would be for a variety with more pulp, though. Also, the big seed is dangerous for choking, especially kids.
The taste is like a more tart than sweet longan.
Jaime