2007 Highlander Hesitation & Hard Down Shift

Our 2007 Highlander has about 1500 miles on it and seems to hesitate slightly and down shift a bit hard when going up a grade and accelerating. Anyone else have this issue? I'm probably going to call the dealership about it.
Thanks.

If this is a V6, some users have complained about hesitation in transmission shifting.

Yes, it's a V6, 4WD, Limited. Was there ever any resolution to the issue?

Don't know as I have the 4 cyl with 4 speed tranny, many have complained about it on Edmunds.com