While I recognize that the voice quality is very good, and sometimes excellent, I'm put off by the credit system, which borders on dishonest. You haven't exported anything yet, and during your tests, you're counted! At one point, I was making good progress on my project, then suddenly, no more credits! Well, you're simply blocked by a banner offering to buy credits. You can't even use the work that was done and paid for!
With a policy like this, I don't give this company much.