Visited one day this week at lunch time. The wait for my juice was reasonable- maybe 5-10 minutes. The service was prompt and professional. I liked the little tables they had and waited there for my order.
The juice itself tasted good, if not just a tad sweeter than I would consider perfect. It was called "Toxin Flush" or something like that. It was a blend of parsley, apple, ginger and maybe one other thing I've forgotten. It was just a little vegetable-y and a little spicy from the ginger. They gave me a choice of having it on ice or not (no ice!).
The menu looks to be limited to the pre-designed selections. I don't think you can create your own combination. The price was lower than many other juice places and the location is convenient. Even though the huge parking lot is often completely full at lunch time, I found a spot right in front of the store the day I went.
I will definitely visit Nekter again and try one of the other juice offerings.