I have been towing my travel trailer for 6 years with a WDH. NO problems. I previously had a Ford Exploder which had lots of problems (I still love to see Fords win however).
I have abused my Honda Pilot till no end, towing out in the desert, and elsewhere. They can handle it. I live in the mountains, and I tow severe inclines on hot summer days, again no problems. I have never had a check engine light come on, and I have 175,000 miles on my Honda. Get the AWD. Its great for low traction situations especially when merging onto a road with lots of dirt or gravel.
HOWEVER, if you plan on upgrading to a bigger trailer in the future, consider a truck with a V8.
BTW, the advisory about not using in the manual refers to an improperly installed WDH. Yes, an improperly adjusted WDH can cause breaking problems. Honda is just being overly cautious.
Take Care
