I loved what Nightdive did with Quake 1, I should probably play 2 sometime.
Though I've always gotten the impression that 2 is more conventional and kinda...less interesting, across the board? I don't remember where I specifically first heard that.
On a related note, I recently played through Bomb Rush Cyberfunk, the Team Reptile successor to Jet Set Radio. It works great! And that's about it. Something about the slower speed, the broadness of the stages and general gameplay formula feels less-exciting than Jet Set Radio Future did. I love the OST, I love the controls, I love the visuals emulating that low-poly, blurry-texture-with-harsh-cel-shading style, but the magic just isn't there. It's not a bad game, and it's probably better for everyone who isn't already a superfan like me, but Future is still the height of this style of game.