First point: Companies like Calmini that are helping pave the way for aftermarket products for new vechiles like the Xterra deserve a certain amount of patience. There is alot of trial and error involved with what they are doing and the demand obviously exceeds the supply. The timing of the order placed seems to have a lot to do with customer satisfaction.
Second Point: Any company that expects to maintain a reputation and hold any sort of loyalty with its customers knows that promises that are made must be kept (clearly an issue with Calmini - don't say your going to ship something if you can't follow through! Simple, right?).
The sliders I ordered from them took over 2 months longer to get to me than they initally said. Every time I called, I got a new ETA. Although I wasn't in a hurry for them, it certainly took away the 'buying pleasure' of my first mod.
That being said, I will buy from them again. In terms of the quality of their products, I have yet to hear of a complaint.
Hopefully soon they are able to develop better business practices and faster production. If they are smart they'll already have someone reviewing this board taking notes.