It transfered succesfuly 5700 articles and categories from my old joomla 1.5.15 to the new 3.6.4 database
Ease of use
Simple setup and working witout trouble. It took more than 4 hours to transfer all the content
Quick response to mails, and they are very helpfull.
The process is very simple and the documentation covers it completely.
Value for money
Good value for money considering that you don't want to mess with the database.