Faltu Testimonial Rotator is an awesome Testimonial Rotator and very lightweight plugin for WordPress website.
This plugin will add a menu named "Testimonial" in your admin panel and allow you to add testimonial with category support. You can embed "Testimonial Rotator" via short-code everywhere in your site, even in your theme files.
All the above options are Changeable via short-code now. I'll add an option panel for this plugin soon. So you can change all the above options via option panel!!
Wanna see Live Preview? Click here: http://webshkhi.org/plugins/faltu-testimonial-rotator