We needed Happi Coats as part of the uniform for the retail staff for our stores at anime conventions in the United States. On our most recent trip to Japan, we tried dozens of stores to find happi coats, and all were either overly decorated or carried specific designs for particular matsuri. They were all also very overpriced.
Taiko Center has a wide variety of colors at very reasonable prices. The plain red Happi Coats were exactly what we wanted. I was worried that they might be too small or not look right since I ordered them online. They arrived in about a week and are terrific. Colors are bright and uniform, the come with a matching fabric belt, and they are cut to a very generous size. I'm 6 foot tall and 200 lbs (183 cm and 91 kg) and the coats fit fine.
We're very happy with the coats and Taiko Center service and look forward to working with them in the future.