I have a lot of clients that want frequently updated testimonial sections. This plugin, in general, works great and as-advertised. However, I have two websites that run into errors every time you try using the testimonial submission. They don't get put into the backend at all and the user gets redirected to a 404.
"0 of 5 support threads in the last two months have been resolved" says everything you need to know if you hit a snag. Author is unresponsive and it's a shame because this could be a 5-star plugin if he helped to iron out some of these bugs.