For the truly paranoid, Carbon Copy Cloner. I have been using Time Machine and I like it, but once monthly I clone my boot drive.
A client asked me to change a page and I made changes. then the client told me which page he wanted changed. And it wasn't the page I changed. So I used Time Machine to restore the previous page and corrected the page the client wanted. Worked great.
I use Dreamweaver CS3 and OS X 10.5.8 (Leopard). I don't know what reviewers you are reading but I like Time Machine. Maybe there are troubles with the Time Capsule, which is Apple's backup and wireless networking system, but not with Time Machine.