The blind was specifically designed for the skylight model I have but I had to have a Velux pro come to install it (for $125) and he had a difficult time. Then it didn't fit right. It was too long for the skylight (seemed to have one slat too many) and left light gaps at the edges. When trying to shorten the blind he discovered (too late) that it's no longer possible to do that, due to the design so he had to order a new blind. That was 3 weeks ago because he hasn't been back to my area. So I have aluminum foil taped over the skylight to keep out the summer heat. The new blind is due to be installed in another week but he's only HOPING that it will have been manufactured to the exact size needed.
I had previously installed (by myself) Velux pleated shades on 2 skylights in my last house, which went up easily and I loved them but they are no longer offered. I'm told the venetian blinds will soon be discontinued, also. I can see why, if their manufacturing tolerances are as lax as on this one. I don't hold out much hope for the replacement to fit correctly, either.
Pros: Sturdy
Cons: not functional, Size, Appearance, not made to correct size, can't be modified