I have been to this place for several times over the last year, and they have been very helpful! Once, they opened the door for me even during their lunch time (non-business hour). They've been quick to attend and fix my bike problems every time I have visited there.
I bought a new U-lock from this place a few months ago, and it's often been having a problem of not being able to lock/unlock easily with the key (which got stuck). I've had enough and finally brought it to their attention. The owner gave me a more pricey U-lock worth almost $40 for free!
It's also a plus that theirs is a family business, and that they have a cat, dog, and some chickens (maybe more animals!). I'd say they charge significantly less and are much friendlier than Du**t C.