It's pretty good and it allows you to transition images and it looks pretty good. But it has a hard time uploading the files and it doesn't display the patient's metadata very well. Unfortunately it is not as good as the more popular proprietary software applications.
I don't know for whom this is intended, but when doing something humble like looking at CD images on a home Linux PC with ordinary monitors, the CD loads slowly (this is not unique), the image quality is terrible, and at least for CT scans, the window and level presets are useless. On my Windows computers I use MicroDICOM, which works pretty well AND from which I can export DICOM images as jpeg files. Unfortunately, MicroDICOM is not available for Linux.