Many people here will hate on your charging money up front. I think it's fine. I won't use it and so you will miss out on users like me who want to try it out, but if we don't want to pay upfront for it then maybe we're not your target audience. Looks interesting, sad I can't try it out!
I hear you. I'll have to consider some kind of demo/free tier since several people have had similar feedback. I'm a bit hesitant to create tiers by arbitrarily turning off features, since people tend to not like that either. Or do you think that would be ok? Just to be clear though, you don't have to pay up front or enter any payment information for the trial period.
