Yes, I switched from Eclipse to Netbeans for PHP development quite recently. And I have to admit - I like NetBeans better. It seems to me more lightweight and stable. It certainly loads faster. And code completion seems to be much better than in Eclipse - it doesn't fail so often, and you can insert hint-comments wherever you wish to specify the types of your variables. Also NetBeans IDE is much simpler than Eclipse. It's probably not as powerful (and it could definately use a few more configuration options), but on the other hand, Eclipse was downright intimidating with its complex system.
Put it this way - if you come from a Windows background (like me), go for NetBeans. If you're a Linux/Unix fan, you'll feel right at home with Eclipse.