I own a Ref kit in Granite Sparkle - 22x18", 16x16", 12x9", 10x8". They're really great sounding drums but they're very LOUD. I realize that your drums are only as loud as the guy playing them...but these drums are loud, regardless.
They're also very heavy. Heavy mounting hardware, die-cast hoops, and thick shells. I can't stand taking these drums anywhere and it's the single biggest drawback, IMO. The bass drum has got to weigh 3x more than my Ludwig kick.
The kick sounds great but IMO, it likes to be tuned up higher than others that I've had. I attribute this to the thickness of the shell. Same w/ the 16" floor tom. The 12x9" is the best sounding drum to my ears...I haven't used the 10x8".
What I'm finding, now that I've had a couple of years around Pearl shells is; they're not overly warm. Pearl's general sound is more of a loud, projecting "DONK". I can see why they've found a niche w/ metal drummers. I definitely prefer the sound of a Classic Maple kit and play that one 99% of the time, these days.
But...Pearl's quality control is insane. There isn't a single notable flaw on these drums. Hardware is top shelf, everything is literally perfect on them.