I've had nothing but a great experience with the fine folks at Ka-blam. I've printed 8 issue with them thus far, used both the Indy planet service and the Comicsmonkey service, and of course the printing arm Ka-blam, and enjoyed every second. They're courteous, quick, and very helpful, and I completely dig their customer service. They do get a bit slower this time of year answering messages and such, but that's a function of the convention season spinning up and them getting incredibly busy, so hang in there if you've contacted them and haven't heard back.