I love how easy it is to create beautiful designs for my clients' products without having any technical experience or coding skills! It's also great that they offer multiple price options so we can choose what fits our budget best.
The only thing about hippoC which could be improved would probably just require more time from their customer support team as well because sometimes there isn't enough info given when people have questions/problems with an account once created (or even after contacting them). We've been able to easily produce high-quality images in no time at all using this software - especially considering its low pricing compared to other similar services out here.