I ordered lighting, bulbs and a hanging kit from Aquarium Specialty a little under a year ago.

They quickly sent me a tracking number for the first package.
The bulbs (7 T5s) arrived fine, packaged well with a hanging kit. I say "a" hanging kit because it was the wrong one. They did get it replaced in a reasonable amount of time.

They never sent me a tracking number for the second package (even after a request), but it eventually did arrive, several days after the first.

I ended up with all the right stuff, but their attention to detail and customer service responsiveness have kept me from using them again.