I have had two bad experiences, and now decided never to go back to this dealer.
My Odyssey mini-van has low mileage and works great. The vehicle has a service code indicator on dashboard about what type of service is due. The last two times I had gone was just for oil change, and both times, the service dept pointed out that I needed a small or intermediate service. It cost about $400 on my last visit. I told them that it it only needs an oil change at the current mileage (and the vehicle service code indicator also showed that only an oil change was required), but they said that the service was recommended by the dealer. I was in a hurry to get to work and did not have time to research, so went along with it. But later I realized that it was too much and un-necessary.
The worse part is this -- in spite of doing the expensive service which was not needed, they did not inspect the tires properly, rather gave my tires a clean bill-of-health (as part of their "free inspection" report). Then a few weeks later one of the tires burst. Not just flat, it actually burst while going at 65 miles per hour on teh freeway (101S). It was very scary. When pulled over and looked at it, it had burst very badly. AAA was very friendly and quick to respond, and replaced it with a spare. The next day when I took the mini-van to a local service shop (not the dealer) for getting a new tire, they told me that the other 3 tiers also needed to be changed, as they all had lots of mini-cracks, including a full circular crack that went along the entire side of the wheels on each tire. This was a major safety issue, and tires with such cracks can burst if weather is too hot, or if there is a nail, or some other damage, etc (which happened on the freeway for me -- AAA person mentioned that it was a nail that had been there from before, but had now gone in deeper). The tire service person was shocked to see how the dealer did not catch this. The tires are about 6 years old, and hence it is expected that they need to be changed a this point.
What was extremely shocking was that the Honda dealer had been happy to perform the other costly services when only an oil change was due, but neglected to point out the issue with tires which is actually a major safety issue. Fortunately, my family was safe and we did not have a major accident on the freeway will all the traffic going by so fast.
After these recent bad experiences, I have learned my lesson, and in future, will stay away from this dealer. From the above experience, either they are negligent or incompetent, and certainly not very honest about services required for the vehicle.