Got my car back today. No rattles so far. One scratch in the silver cover around the gear shift - replacement part should be here tomorrow. The tech apologized to me for damaging the cover. Way too much Dexcool in the surge tank - nearly half an inch above the full cold line. I'll let that vent out as I drive. I did, for the first time, however, smell coolant outside the car which I fully expected to smell after seeing the coolant level. On the flip side, it appears the cowl seals for my car are working as designed as there was no, zero, zilch, etc. odor in the cabin.