I really like the Honda twins of that vintage. As long as it has been well maintained, it should not have any major issues and, if looked after, should be a reliable bike. However, keep in mind that they DO need more maintenance than newer bikes - it may have contact ignition, for example (not a problem if you are OK with adjusting points from time to time).
As far as performance goes, it will keep up with highway traffic easily and should have reasonable, predictable handling. The weak area, compared to a more modern bike, will be brakes. I believe that model has a twin leading shoe drum brake on the front, does it not? They work OK, but the bike needs to be ridden with this in mind.
It's a cool bike and one that may actually appreciate in value - I'd consider it.