The first time I ordered from this site I got a package of inverts, the second time I did the u-build-it package from here. I was pleased both times. Good livestock, arrived alive, acclimated well and no fatalities.
IMHO you cannot beat the guarantee, which you cannot get from the LFS, and the customer service is above and beyond.
Finding the u-build-it section was difficult for me...my screen must be short. To your left on this screen I see 2 1/3 pictures. One says reef packages under it, one says live fish under it and of course I cannot see what is under the third picture...that is the u-build-it section.
I am home one day a week so I ask for delivery on that day in the special instructions. My last shipment was ready to go, they were out of one item I ordered so they called my house, got my pager number off the answering machine and paged me to ask for a substitution. That is customer service. The prices are fair here and quality is great.