I owned a Cobra amongst a number of T500s I happily rode for years. The porting was different, as were the carbs, to the first Titan and the power band was narrower and higher and the fuel consumption was heavy. Suzuki fixed all the Cobra's problems in the first Titan - bit like what happened with the original 'Black Bomber' Honda 450 and the next model CB450. I sold mine to a mate who rode it for years and put some huge mileage on it. I think it is still rusting away in his shed. Only major thing to look out for is dry crankcase seals if it hasn't been run for years.
(Oh, and the seat had a weird matte finish and didn't last long before cracking.)