The 20-35 was originally a PJ lens for film bodies, and acquitted itself well enough, until new designs have out paced it. I liked mine on my F100. I've never mounted in on a digital body, but I doubt it would impress at 24 MP's.
There is an issue with the 20-35 design in that it uses a mechanical ring to control AF or manual focus instead of the more modern AF/M switch. That design, with the ring, is a notorious source of problems for the lens models that use it. Nowadays, if that lens needs AF/M ring repair, since Nikon won't sell parts to the pro shops any longer, it has to go to Nikon, and it's not an inexpensive repair. The 20-35 enjoys a solid build, but it has been replaced by better performers that don't have the design issue of the AF/M ring hanging over them. Today, IMO, there are just better places to spend your money for a wide zoom. HTH