I purchased this wish list script as an add-on to an existing site that I operate. Although the script had the main features I was after - ability to add items to a wishlist from multiple separate websites, and the ability to automatically integrate my affiliate tracking code with a wish listed item - I did require it to be customised with some added functionality and the tweaking of some design features. Chris, the developer, was able to make these changes for me at a reasonable price and in a short space of time. His response to my many questions was always prompt and professional. The few small issues that did arise as a result of the customisation were quickly and efficiently resolved by him.
I would highly recommend this wishlist script and the developer behind it.