Highly recommended! Works first time, support is quick (though you probably won't need it) and it looks great. Also there are a ton of options to configure and it's well worth paying for the full version. I have a couple of sites running the free version which I'll now upgrade.
If you want to do link exchange then this is for you but it has so much more to offer and is perfect for building a directory style site.
A single module which is multi congigurable gives you all the display options you need without having to muck about installing loads of different modules.
Well worth the outlay.