IP Management software

Hello, I know the topic of ip space management software has come up before, but it looks like most of the people suggest either free/in-house solutions or QIP and Meta-ip. I was wondering if anyone had any experience with a product called IP Commander by Incognito software? Also, if anyone knows anything about QIP or MetaIP, I would appreciate it if you could respond off-list. I'm looking at all three products to manage our ip address space, and I'd like to talk to someone who's used them in production before. Thanks a lot, Rob