I've beta tested it for a few months and have to say for a low-end link list site, it might work ok. I've used a lot of scripts and played with several on test sites and I have to also say I am very disappointed in JMBSoft's LinkX. I've used all of their scripts and I was dumbfounded as to why they created such a limited script and why they didn't build it to the level they have with their other famous scripts. When I see the script and the admin of LinkX it's like, JMBSoft built this? It just doesn't seem like it's up to their standard quality.
Harsh I know...If you are serious about a quality long term link site, I would not use this one. Xpowerlinks is one possibility, there are a few I integrate into CMS sites, but I am sure others here will provide some alternate options.