Well, this is a replacement for my 2004 GS500F. First things first, the Honda is better, suspension, engine and brakes. The Suzuki is more economical, but sometimes you need just a bit more "go!" than economy. Having used 1200's for commuting, this little 500 has decent punch and handles very sweetly. I'm going to fit a Givi fly screen though to get some of the wind off my chest. Also fitted new mirrors as the old ones were awful. Bolts had corroded through, so they fell off!
Nice low weight, good low speed control (yes a perfect DAS trainer bike) and decent brakes means you can have decent fun on it. If you are used to IL4's or a Triple, then it feels a touch gutless and breathless, but as a commuting tool and general runabout, absolutely ideal. Mine has 22600 on the clocks when I bought it, only 3K added in the last 3 years by previous owner. So it is reasonably low mileage for a 2005 reg model. No ABS, but you can squeeze hard and it stops! Needs a hugger and hand guards/heated grips for all weather riding.
Get one, you won't regret the fun times.