I've tried two other gallery extensions before Slideshow CK and this is the one I'm sticking with. It was easy to implement and works flawlessly. It took some experimentation to get the styling options to work as I wanted (probably due more to my inexperience than any fault of the module) but otherwise a very successful gallery. My site is pretty text-heavy, and I use Slideshow CK to add random images to articles for graphic interest.
Overall a simple and effective module. Thanks to the developer!