The only thing with the V6 is the timing belt and VCM (Honda's cylinder deactivation system). The timing belt typically calls for replacement at 168,000 km. Given this car is 12 years old, it might be prudent to change the belt early since the engine is an interference design, and a broken belt will result in engine damage. Probably fine for now but something you might want to do in the not too distant future.
With the cylinder deactivation, those earlier VCM systems proved to have issues. I think that particular Accord might have version two which was more reliable than version one, but again, something to consider.
That's almost exactly what the inspecting mechanic said about its timing belt
Will take it in for winter to summer tire change in the next couple of weeks and ask him to check the timing belt as well.
He said he had a Ridgeline in his shop once, with 300k+ on it, still running on the original timing belt and it didn't look like it had to be replaced. I'll get it looked at as soon as I can of course, but that does inspire confidence)
This Accord does have the version two, I checked online. Seems to be working well so far, but again, will have to wait and see over some time.