We own an '03 Sorento, and except for the malfunctioning digital clock in
the dash, nothing has gone wrong in 25,000 miles to write about.  It runs
very well, pulls our camper with no problems, is comfortable and quiet.  I
wish that it had a little better mileage, but I guess you give-and-take, and
we had to give up a few MPG in order to get a heavier built vehicle that
could tow well, unlike all of it's competitors in the same price range.  I
also wish I could access the spark plugs myself, but since it has platinum
plugs I won't be worrying about them too soon (actually the dealer won't be
worrying about them too soon).

I use nothing but synthetic motor oil in it (Mobil-1 10w-30), and installed
a valve in place of the oil drain plug to make changing the oil less messy.
I would like to see a taller oil filter with more filtering media on it,
however.  Does anyone know if there is a filter that has the same base and
thread sizes but is about twice as tall as the stock one?  I use Purolator
PureOne filters and never had an issue, but I'd like to have a little more
media than what the stock filter size provides.  All the joints in the
steering gear are sealed so there's nothing to lube with a grease gun.  How
much easier can you get?

As for the digital clock, the dealer offered to replace it under warranty
but he'd have to disassemble the center dash to replace it and my wife is
worried that it'll start to creak and click if we have it taken apart (it's
her truck).  For a month we had an issue where the center dome light
wouldn't turn on when a door was opened, but that was probably some dirt on
one of the switch contacts because it started working again and we haven't
had a reoccurance in over three months.

Anything that we would complain about would be trivial at best - so what's
there to write about?  We already know how good it is.

Cheers - Jonathan