ROBM sir. The 3s at times are not that bad. Let me give you an example, the throttle body on this car has a teflon coating at the butterfly hinges. It is specifically mentioned in the manual not to scratch it as it will start wearing out the pivots and result in decreased butterfly life.
During last tune-up at 3s for a friend's City, I was focusing on how the tech works around this to clean the TB. And yes, by his actions, it was pretty clear that he knew not to scratch that area. The whole point is, no other mechanic would have cared unless he had gone through the manual or training.
Regarding the jobs:
-Throttle body service - OK
-Tappet adjustment - OK
-Fuel filter replacement - No Need - Replace at 80K
-injector cleaning - No Need-
-New Spark plugs - Definately no need. By the books, these iridium tips last 100K Kilometers.
-Transmission oil change - Replace it at 60K (as per book)
-Ignition coils' continuity inspection --No one does it. And quite frankly, no need
-Full engine tune up -- There is no such thing as tune-up in this car. After TB service, the honda guys hook up a PC scan tool, Reset ECU, do a idle learn procedure and TPS callibration. ALL done.
Certain dealerships have pre-printed package slips with cost breakdown. Select the options you want to go. It will cost you roughly around 3000. No more.
One more thing, the above cost also includes all wheels brake service. As forcefully as they say to replace the front pads, dont do it unless you inspect them yourself. You also have the service manual, might figure a way to measure the thickness before actually replacing.
Hope it helps