Have bought a boat load of products on Appsumo, but I have never regretted any to this extent. I was pretty excited when I saw the features and especially the whitelabel options and so I went with the highest tier: Tier 5. Problems started cropping up one after another. The chatbot is not very customizable including some of the most basic features like giving a responses with links to options doesn't work. Their support responds (slowly), and they seem to be unable to get a fix for most issues we faced despite having pretty simple requirements.

Most importantly, AppSumo support will not help once the 60 day window closes even if the product stops working as it did during the first 60 days. Only then it dawned me that AppSumo products are 60 day purchase than a lifetime one - because that is the only time window where you are assured of a working product and beyond that it is just a bonus. Think twice before buying the highest tier for any deal and remember it can stop working anytime and AppSumo support will be of not be of any help.