I used to have an 2002 SV650S, I sold it because the offered price was more than right. In comparison, the Gladius has smoother engine operation, less vibration throughout the rev range, slightly more hp and torque, wider handlebar makes the bike feel very nimble, awsome tires that are confidence inspiring. I’ve put about 3600 mi. on the Gladius since late May, it’s a great beginner moto IMO, and beginner riders are not liklely to grow out of the Gladius as their riding skill improve.
Some very cheap or no cost way to loose weight on the Gladius make the weight difference between SV dismissable.
I don’t worry so much about looks when it comes to functional items like windshield, I figure if it is cold enough to have a windshield on moto, it better serve its purpose well. The one I have does a great job blocking cold air off my chest and arms, if I duck down with my helmet, it quiets down drastically so I can hear the nice engine and exhaust notes.