The Joomla! Extensions Directory ™

This is the best paid extension I have purchased. The versatility of this product and the support is unbelievable.
Pros:
Easy to install and setup.
Very detailed step by step instructions available. Inspite of that, if you have questions, Rob is great with support.
It allows for multiple person/resources to be set up on the system, each with its own Paypal, SMS, email, time slots... everything.
The appointment booking can be easily managed from the front end. No more worrying about giving your clients access to the backend.
I have now tested that the SMS works flawlessly using EzTexting in USA. The SMS rates with EzTexting is quite good too.
Cron for reminders is also easy to setup and works really well. I have used the cron code for other extensions and almost always have had to go through error fixing. This one worked the first time.
What I loved the most is the ability to access bookings using your phone app. I have so far tested it only on Android. Works perfectly and hope will work with iPhone and BB too.
Cons:
The product does not do dependencies for resources.
No Google Checkout.
Hopefully in the later versions, Rob will add these functionalities.
Overall a great product.