Got off to a good start, but then did that classic trick of not keeping their promises to those who helped them to get going.

I wouldn't trust Chatbase, or ever buy anything from them again, as companies who are willing to their early users won't be bother to look after paid subscribers either when it comes down to it.

I definitely don't blame Appsumo for this, as I've had some amazing deals from Appsumo from companies who don't just keep their promises to the early adopters, but end up over delivering spectacularly. Interestingly, they're always the companies who succeed, and the ones who break promises always seem to fall by the wayside eventually.