I've purchased items from Gearbubble since the beginning and done business with Don Wilson and Rachel Rofe for over 7 years.
Not only have my items been shipped correctly but we shared Gear Bubble with our customers who are in the business of selling customized merchandise and have had nothing but great reviews from them using it to build their customized merchandise businesses.
Service is great, super responsive when we've asked them (both the Customer Support folks and Don and Rachel personally), and they're constantly adding ways for us to buy more stuff through them.
Overall, love GB as a customer of people's merchandise (I collect coffee cups personally) as well as sharing them with our customers over the last couple years.