Fibrenew reviews - thoughts?

[leanned]

Just got my unicorn - 2002 V70 T5 manual transmission - last week. As with any 10 year old car, the driver seat is a bit worn. Has a fair amount of cracks/creases in the seat and side bolster. The passenger side has some as well but not as much. A friend recommended Fibrenew. I searched the forums and it looks like the reviews are mixed. Pretty good in Canada and with a Swedespeed V70R project car. A few others said it was rip-off. I am not expecting perfection just some improvement.
The Swedespeed project did a good job describing the process. I am curious how long the effects look, last, etc.

Thanks in advance.