I don't generally write reviews for the software I use but I'm really excited about this product. To be honest, I would have paid more for it now that I know how awesome it is. Very good extension, very simple and very complete. Registration process and custom fields management are the most impressive areas, I can customize the registration as I want from the admin panel.
The support is also amazing and quick responder and also able to resolve any kind of issue in timely manner.