Playht has many good things, and many interesting features. Plus, the limits are stackable
It's easy to use and has a clear dashboard.
Maybe, the negative point for me is that in my language there are few realistic voices, few with enough quality to seem "human", actually I have only found 2, but I trust that little by little more realistic voices will be included in my language (Spanish).
At first, when trying it a little bit in my language (Spanish) I found several problems, but the customer service has been fast in solving the problems, they listen to their users! and, I believe that if they keep listening, the software will improve a lot and add new and interesting functions.
I have also discovered that there are many "hidden" options such as changing the intonation or emphasis of the voice and other advanced settings, as well as the style of speech, and that allows for really good text matching (I am sorry that these powerful options are not yet available in Spanish)
Finally as a suggestion: it would be interesting to have included the opposite option... to convert audios to text (for example an interview), maybe it will be included in the future?
I want to offer my 5 tacos!

Additional note: hopefully PlayHt is still there many years, not like other services I've bought in appsumo and has closed in less than 2-3 years (a very strange lifetime)