I traded in a 2002 ZRX1200 that was well-massaged. Suspension, brakes, engine mods made the bike quite fast, handle extremely well and it was a great bike overall.
The powerband was such that all you really needed was 3rd gear on the bike. It was very smooth from 15 mph to 125 mph. I can remember many days of running the twisties up in North Carolina and having 600 sportbikes behind me unable to pass on the uphill sections of roadway. Once we got to the top, it was a bitk different headed downhill.
Some of the things that led me to the V-Strom were much better protection for the rider. More leg room and a generally more comfortable seating / riding position. Do I miss the ZRX? At times, but once underway on the Strom, all memories of it just disappear.