[Stretch58]

In only my opinion, it would be a good idea to service the transmission(fluid,filter). I would not flush it yet. At 33k miles it should not need either an oil flush or induction system cleaning yet either. Oil and Filter changes regularly, in my case every 3k miles. In one of mine I did the induction system cleaning up around 90 K along with a trannie and brake fluid flush(a lot of bad stuff came out of the rear brake lines). Also changed the fuel pump(had a Buick strand me at 100k with a bad fuel pump), water pump and tensioner about 100k. Uses no oil and you can hardly hear the engine idle at 114k miles. I also change the serpentine belt about every 40k miles. Am going in this week to change sway bar bushings.
If I were you, I would find another garage, I tend to think you would get hosed there if anything ever needs fixing. I would have the transmission serviced at the dealer, so some generic fluid does not get put in your unit.