Mine definitely needed a truss rod tweak to start with, and the non-adjustable nut is the stupidest thing I've ever seen in my life, after owning so many excellent Warwicks. Warwick 1, Ibanez nil.
I've installed a new set of Labella Low Tension flats, lowered or raised the saddles individually to my taste (higher on the low B to avoid that clank, pretty low on the G because it's easier to play, and everything in between), lowered the pickups and made sure they are nearly flush with the body on the treble side, and protrude a bit on the bass side.
I have noticed a big difference between the sound when I play plugged into the PJB briefcase and when I use the PJB Bass Buddy with its headphones. The bass sounds majestic on the briefcase no matter how I tweak the knobs or the pickups, but the vast majority of my bass playing is along my MP3s with the headphones, so I have optimised it to sound good in that situation. The pickups output has been deliberately weakened by lowering them to avoid clipping, then I've rolled off almost all the lows on the appropriate knob, and tweaked the highs and mids so they sound good when I'm playing along music.
I haven't noticed any clank or other string noises that I couldn't get rid of - however, I don't slap. This bass would probably need a ramp added if I did. The pickups seem wired correctly, and all the switches and knobs seem to do what they say on the tin. Yes it's as heavy as my Fortress 5, but so were most of the other 5-string basses I ever picked up at NAMM or the LBGS. The Mike Lulls of this world are exceptions, not the rule. The neck is an absolute dream, fast, smooth, thin and the perfect shape for my small hands.
Unlike all the Warwicks I've ever owned, with old or new style bridge, the intonation of the low B was 1. achievable 2. a doddle 3. did not require getting rid of the saddle spring. In other words, the designers have had no trouble allowing for enough low B string length despite the body being small and cute and the scale being 34 inch.
So it's Warwick 1, Ibanez 1 at full time, and I'm loving both and I don't have to choose one over the other.