What I wanted? I needed an extension for a small private clinic that would provide possibility to book visits online, cancel them and confirm via e-mail. I also wanted to add different doctors specializations, set a working hours, prices, possibility to pay online... And I also wanted something EASY to configure and with fast and good support. And it just had to be good looking on the website!
After reading information about each extension and checking demos i finally decided to purchase this one. And I musty say that I am really satisfied with my choice. Easy to configure, provides everything I needed (actually provides much more) and the support is great - fast and patient :) Solve all my doubts within some minutes only.
Well, I think it is really the best solution in this category and I am sure that in the future - if I need - I will try more extensions from this provider.