Our non-profit, non-commercial educational institution purchased the Tier 5 license of GSpeech in order to provide text-to-speech capabilities on the websites we've set up for our members (who are themselves organisations and clubs).

As many other AppSumo buyers have already noted, the level of service provided by Simon & GSpeech is truly outstanding. Careful, thorough, patient, and clear.

We experienced some awkwardness with the initial set-up, but now feel quite comfortable with all the buttons, sliders and options.

The selection of quality voices is good. The diction is clear and not "robotic".
Many of the voices allow pitch and speed control.

Credits are only consumed when the initial text-to-speech conversion happens.
In other words, credits are not consumed every time a visitor has GSpeech read a page.
If the text on the page is altered/updated, GSpeech will detect that, and reprocess that page as if it's a new page.

The embedded player is easy to customise. It has no GSpeech branding.
Words that require special pronunciation -- such as abbreviations -- can be individually defined.

The founder has a very strong commitment to continual refinement and improvement of the platform, which means that, over time, it will get even better.

We're very happy with GSpeech and are happy to recommend it.