Yo!Kart has a very limited number of successful cases on their official website. There are 28 case studies in total, and only 16 of them are still functioning. Some of the cases displayed on the Yo!Kart website are neither presented in the search results, nor even no longer exist.
CS-Cart on the other hand has been building huge and prosperous marketplaces since 2005
and it has over 35,000 clients all over the world.