I do have experience with them. And they will fit all 986 generations.
FIRST: I totally love them. But man was that scary to install them, following the Porsche instructions 100%. One of my first DIY mods I did on my "prestine" 8 year old 986. No risk, no fun.
1. Exact fixing rail (98655998200) installment on each side is key to success
2. The kits contains 3 pre-shaped guards to locate the rail attachments sweet spot (max tolerance 1mm was my DIY goal)
3. IIRC I had to DRILL 11 special screws into each side of my Boxster...ouch...without pre DRILLING to prevent corrosion. The first screw was the scariest (now that didn't sound correct). POWER TOOL and a lot of pressure to get those suckers through the metal. AND IF I would have slipped...OMG...
And the rest was more or less easy, pour special adhesive along the rail, hook the sides skirts into the fixing rail and press downwards. And attach the screws below/bottom side. That is, when you realise, how perfect your measurements were.