I have to agree! I'm a new 1500 Limited owner and couldn't be more pleased with the HK stereo.
I gotta say - as someone who typically blows OBSCENE AMOUNTS OF $$ on my mobile audio (and I have $5k of Focal, Moscone & JLA Sub I pulled out of my last car), and am also a live sound & recording engineer (another obscenely expensive hobby) - I'm still on the fence about tearing my nice Limited apart to put my existing hardware in (with some upgrades/mods).
Now - coming out of a car system that sounded better than my home system (Klipsch LaScala 2's - bi-amped, Klipsch 15" Powered Sub for front/music channels) - can I HEAR the shortcomings of this HK system? Of course I can - there's always ROOM FOR IMPROVEMENT. But frankly - even knowing the difference putting in my stuff would make, not sure that I want to throw away my interior storage with 3 amps, and sub(s).
The simple upgrade of the Infinity that folks have been describing (and personally, especially for the $$, infinity speakers are some of the most "musical sounding" speakers) - or just leaving the damn thing ALONE. Of COURSE the thing would sound better with all my stuff in it. But at the sacrifice of most/all of my interior storage?
I say the same thing, when I want to mess with the exhaust system - yeah, it would be badazz to drop a Borla or Magna in - but the truck is so quiet and comfortable. Do I want to screw that up?
But honestly - even being 95% $$-wise there with existing gear - I'm pleasantly pleased with the HK system. This could change down the road (only had the truck for a month), but for now, I'm happy to leave well enough alone. I'm almost afraid to visit my installer, because he might talk me into doing the upgrades anyways.
I got this truck as an alternative to an "upscale SUV" - and frankly, nothing I drove comes close to this new RAM (except for the F-150 Platinum with the diesel - CLOSE, but no cigar). FCA is missing a key market segment by not having a full sized SUV based on the 1500 chassis. The Durango while nice - also doesn't come close to my Limited - it was too cramped in the interior (though if any dealer down here had an SRT on the lot, I might have been swayed).
I have to keep saying "don't screw with it, don't screw with it" to myself - because I LOVE SCREWING WITH THINGS.
Rick