I just purchased it and within the first 8 minutes of using it, it's arleady crashed twice. I'm trying to simply do the basics here. The first time it crashed, it was during the product tour pop-ups - so I literally wasn't doing anything at all. The second time, I made it to the chat and attempted to change the picture - and it crashed again. So I have yet to be able to make the chat. That being said, I'm only taking off one star because, hey, products on appsumo are in development and they launch here to get feedback on things they can improve. I'm quite sure they'll upgrade the servers and this won't be a problem for much longer. The program itself is very cool though. You can A/B test chat bots, images, colors, and a bunch of other stuff to see what works the best. I really like the idea behind it and if it works, it'll be great.