I have two quick issues that I am trying to resolve with the free version of your plugin (before I can recommend to my client that they purchase the pro version).
Issue 1: The character limit input does not appear to be restricting the length of the text being displayed at all, seems to be constantly defaulting to 500 characters.
Issue 2: The "Read More" link is not being generated for the testimonials (This may be a premium only option, have not been able to find definitive answer to this in documentation yet)
I will be diving into the source code shortly to see if I can determine the issue for myself, but I thought I'd post here to keep you updated for possible bugs.
To see the issues live go to http://demo.carriganscomputercare.com and you will see the widget on the right. If the issues are not appearing any longer it probably means that I have been able to locate the issues and correct them. I will be keeping the original files intact as well so that the issues can be reproduced later.