It has been quite a few years, but I ordered a dozen or so trees from them over a couple year period. I had no issues. All have matured and are healthy.

They don't offer the variety of types of fruits they used to, and many of their cultivars are tailored to the commercial orchard, not the backyard that doesn't put as much emphasis on storage length or shipability.

The quality is good if you can find what you want. You need to call them when you want them to ship.

Although it was quite a while ago I did not have a great experience with them. I posted it here:

Here is a link that might be useful: C & O Nursery