That's a good demo, though he never really gets in the "Ric-Like" treble clank on tap with Rounds in Treble boost mode with a pick. I don't get the "too trebly" comments at all. You can dial in some clank if you want it, but it's not harsh at all to my ears. You can hear that thick juicy bottom though, and it covers most of the common P and J tones. It was one of only two basses I owned for almost 30 years, and I never found a bad tone in it. The wiring layout "under the hood" is a little daunting, but I never had a lick of trouble with it, so if it ain't broke..... the battery disconnects when you unplug the cord, so It's not a battery hog. Mine is shielded with a big brass plate in the bottom of the cavity, and it's really quiet. The bridge is what I'd consider the first truly modern "high mass" locking saddle design, with a big "foot" routed into the body. The saddles are easy to intonate, and then lock into place with a hex key set screw, so it doesn't ever buzz at the bridge. Leo intended this bass to incorporate everything he learned from the P and J designs, and he succeeded.
Maybe it was my rig, but the L2500 that I had was very quickly flipped. Incredibly harsh and aggressive tones.