A wonderful fine grained film with great sharpness and detail resolution. Try using it for landscapes and process with an accutance developer like Neofin Bleu: the effects can be breath taking. It also makes a great film for making copy negs from prints, rated at ISO 25 and pull processed to keep contrast down. People tell me that you can also subject it to reversal processing to make high definition B&W slides. I have never tried that, but would be interested to hear if anyone else has.
The down side, obviously, is the speed. Don't expect to be able to hand hold in anything but good light. That said, it is easier to use than Tech-Pan. I remember hand holding quite happily with a deep red filter on the lens, in the Jordanian Desert.