No, I've never sailed one but I sorta like the concept. Part of why I
like it is just cuz it annoys some people who deserve to be annoyed.
However, I own more boats than I need (I am down to only 8 at last
count) so one that covers the same purpose of two might be good. I
have a sailboat for cruising and I do not expect good sailing
performance while cruising except downwind and a bathtub with a towel
for a sail will go well downwind. Sailing upwind for any length of
time is impressive for an hour or so but not a great way to be comfy,
I'll use the engine (with sails as an anti-roll) then and if I had a
MAc26 would use her motor.
I own a 20' power boat specifically for exploring shallow water where
all the interesting things are and the Mac26 would fit this very well.
I don't need her to be a great powerboat as even 15 kts seems like
warpspeed to a sailor who is used to 5 kts.
My point is that a MAc26 not being either a "Good sailboat" or a "Good
Powerboat" has no meaning at all to me as I simply do not need either
a good powerboat or a good sailboat. I do have need of a trailerable
extreme shoal draft boat that is capable of more than 5 kts o get
somewhere in a hurry if necessary but can be sailed at a more normal 5
kts most of the time. I think that most people who buy Mac26s think
the same thing.
So the Mac26 is spartan. My S2 is even more spartan. If I was not so
used to my current boat and if I did not want to go really far afield
in cruising, I'd buy a Mac26.