My compliments on this plugin... it was exactly what I was looking for.
I discovered a small but frustrating bug which I'm hoping you're either already aware of, or can repair relatively quickly. It seems that when using this plugin as a widget, the "Show Excerpts instead of full content?" checkbox gets stuck in the selected status once saved that way. When you first add the widget this checkbox is unselected by default. If you save it that way from the start, there's no problem. However, if you check this box once, and press save, there is no way to ever unselect it. At that point whenever you resave the settings this checkbox magically reselects itself. So there's no way to undo it!
This is actually causing a problem for us right now, and we'd be very grateful if you could fix this bug.
Other than this, everything is working extremely well thus far. We have created our own custom display code and are using it in the sidebars of our official site. We will soon be placing this on its own dedicated page as well. The fact you can custom code the layout and css makes this the best testimonials plugin I have seen out there.
Thank you ahead of time for your help!