Tim,
Yes, it was last year...
The plants that I've purchased from them have been slightly root bound. A simple bare rooting and re-potting has worked, with almost no delay in growth. The key is to bare root in a tub / bucket of water using the "water bath" method.
If the plant is root bound
1. Remove it from the pot, holding it at the soil line.
2. Dunk it root first into a 5 gallon bucket filled with water, and repeat (like dunking a tea bag).
3. Remove all the growing media (with the water in the water bath only).
4. Do not root prune if the plant is leafed out. Repot and place in shade for a few days.
This procedure usually removes all the potting mix with minimum damage of the roots.
Warning: Do not root prune, because it will initially slow the growth of the plants.
<Edit>
greenfig,
Their O'Rourke/Improved Celeste was a much better producer, The taste was similar, but they were very young plants. Haven't tried the Lemon, newly purchased this year, but a very aggressive grower.