I bought these to be my everyday chopsticks. I take them to work, and use them at home all the time. The quality of craftsmanship is very impressive. I love that they come in a small container, and that they collapse since carrying full sized chopsticks is a bit difficult.
The negatives: I wish they were longer when extended. Im used to big blocky Chinese sticks and these took some getting used to. Also the heft took getting used to as well.
The only other problem would be that I would dread trying to clean the whole thing. So far, I just clean the part that gets food on it.
All in all, I am very happy with them. They are the only chopsticks I can keep in my pocket.