I'm not sure what you mean by special.
It's a pain in the *** to work with.. right now our company has installed about 15k sqft in the last year of one of the products for 1 company (re-doing all floors in their building) and it's a pain. They have some neat patterns to them, designers LOVE them, but the real issue (apart from the price) is the availability. Designers look at the catalog and just pick one of the films without asking any info about it. Some patterns are the width of the roll, and some are the length, and sometimes just don't work. Some of the materials are not even made often, if you pick one of the "less popular" materials you may be waiting upwards of 3 months to get the material as it has to be made and shipped from Japan.
Also a quick note on the install side, make sure squeegees etc. are clean as the fasara materials with a pattern/gradient scratch very easily.
If you have any other questions let me know.
Chaz