PIREP Needed - Aircraft Door Seals Instrument Panel cover

Anyone purchase one of these for their Cherokee? They tell me that
removal of the existing panel is easy and the total job (including
remounting the defroster ducts) will take no more than 2 hours.

For the life of me, I cannot see how it can be that easy. The padded lip
is mounted SOLIDLY to the instrument panel, although I cannot see how.
The padded underside lip material was stretched and riveted. Where are
the mounting screws? Do you have to crawl under the instrument panel to
get at them? If so, there is no way 2 hours would cover the R&R of this
beast. I can see the front lip is pushed into the extruded aluminum
molding. They say this can stay. So, it appears their solution
completely covers the irregular top forward surface with a smooth flat
top. Getting at the defroster 6/32 screws look like a real adventure.

How about it? Anyone been through this?

Thanks,
Mike