Heya...welcome to the club and congrats on your purchase. Just quickly answering your question about coming from turbo cars and whether the SRT disappointed in any way...not a chance!!!
I switched to a '15 SRT from back to back Subaru turbos (a Liberty GT spec B and then a Forester S-Edition) and the SRT simply eats them up for breakfast. The down low instant power and the grunt and bark of the engine brings a smile to my face just thinking about it. Sports mode is crazy and I have not toyed with track mode even after putting 4K on the clock. Thinking back to the lack of power off the mark in the two previous cars, waiting until the turbo kicked in now makes me think I should have modded the cars somewhat, but I prefer to leave mine stock for warranty...and there is nothing to be done to the SRT for me. As you will see others here make it a hobby to mod their cars and most of the results are awesome...and the 19 speaker HK Is the best sounding system I have had.
I felt a touch boxed in at first with the all black interior (coming out of grey/cream ceiling/roof colours of the subaru's) but I now usually drive with the sunroof screen opened as the glass is much better protection from the sun than on the previous cars...and the pano roof is huge. The all black interior grows on you and feels more classy now compared to the lighter interiors I have had.
There were some minor issues with the build quality but after surveying some new cars that mates have bought (other makes and models) it seems like many cars are suffering from a lower standard of build these days.
Enjoy the ride...there will be no regrets
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