This was the job I mainly bought the saw for!

It cut through the facia plastic material (which was much thicker)
perfectly, but I had to cut lots of 300mm wide bits of very thin double
walled plastic soffit. Rather than cut them, it just ripped at them due
to its very course blade hooking onto the thin plastic.

I chased around all of the local tools emporiums for a finer blade, but
the fitted blade was as fine as they come as standard. Then I had the
bright idea of turning the blad around, so it rotated backwards. That
worked perfectly.

Be warned that getting to the Allen bolt fixing the blade is almost
impossible with the supplied key for blade changing, is next to
impossible. The blade guard and its linkage overlap the bolt. Luckily I
had a set of those ball ended Allen key sets, which allow the key to go
into the bolt at a slight angle.

After a late start, I mananaged to get one house side of the soffit +
facia + guttering completed, all but the fall pipe. Fall pipe and the
other side tomorrow.

Quotes for doing the job varied from £1100 to £1600, parts and labour.
Our materials cost was £151 and will have taken two of us two days to
complete - a bargain I think and the satisfaction of knowing it has
been done properly.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk