It offers the only real alternative to the full functionality of QTVR Authoring Studio - a complete set of tools for creating QuickTime movies and linking them all together into a virtual world. As has been noted in the individual reviews, the interfaces are a little clunky in places, but I guess you get used to the quirks of whatever software you choose to use. The only particularly annoying bit of the interface is the manual alignment of images in the panorama module. Unfortunately manual alignment is achieved by clicking on virtual cursor keys in the interface. A single click moves the image 1 pixel, so if you are using very high resolution images this interface can be extremely slow and frustrating.
Shame there's no zoom function either with which to achieve the best alignment.
Performance is similar to each of the free-standing versions of the modules. Matte, which allows you to remove the background using colours or an image and then insert either a colour, pattern, still image or even a QTVR panorama. However I found that the panorama module produced results similar to those in the PanoWorx v1.02 tests . As with both version 1.0 and VR PanoWorx 1.02, The VR Worx 2.0 still has bugs on the PC and can be temperamental. As with each of the free-standing versions of the modules, VR Worx's strength is its support of the QuickTime VR format.