My biggest problem with this app is that the URL-checking throttle does not go low enough. Even if I set it to 1 request per second, the requests start to pile up eventually and it turns into a mess. On the first run through it wasn't able to access two thirds of my bookmarks, even though most of them were fine. Even on its second run through, it still reported a ton of bookmarks incorrectly as broken. Testing them manually they can up fine, at the same address.

Even worse, it floods my connection with so much traffic that attempting to do anything else online is pretty much futile. This is a high speed cable connection too, not even dial-up. Since I have so many bookmarks that forces me to run it overnight.

My next biggest complaint is the interface. It is easily among the sloppiest I've ever seen. For a freeware app I can live with an ugly interface, but I've certainly never paid $20 for an app anywhere near this bad. Fortunately it doesn't get in the way of usability too often, but with more time spent on the interface it could definitely be easier and more enjoyable to use.

Aside from those complaints I'm fairly impressed. It did an especially good job of finding duplicates and helping me determine which to delete. Checking the URLs it found as broken was much more frustrating because it was incorrect about so many of them. For each one I had to click the test button manually and let it load in my browser. A built-in browser could help alleviate this problem, by loading the page automatically right in the window. Shouldn't be too much trouble with WebKit.