Don't go for gocharlie. Just my experience with gocharlie raises some concerns. They are USA company and they said they can't accept PayPal payment because they don't feel it's safe. That's pure nonsense. Means gocharlie can lie sometimes or are not intelligent to implement such payments as PayPal. I personally feel the true reason they don't offer PayPal as payment is because they don't want potential buyers to ask for a refund. It's not regular practise, most softwares offer refund. Also, gocharlie uses childish, low quality, dog mascot. AI is serious thing and to have your target audience who likes childish low quality mascots is plain stupid. Also, any AI softare which does not offer lifetime deal from now and then, will be outcompeted sooner or later, by the new AI software which offers lifetime license. So in my honest opinion, gocharlie is only as good as people in their development team. So far, I feel they are good at listening but terrible at making simplest decisions. Other than that, they AI software does have some unique features and is quite ok. I think gocharlie would do better if it was represented by Kostas and not that American guy Brennan who most likely lies and censors the truth facts.