You asked for unbiased opinions, well people either love em or knock em ! so a truly unbiased opinion is difficult to find.
Me. I love em, I'm on my 5th GSA the last 2 have been WC and yes there's the occasional niggle but for me it does the job I want my bike to do, and THAT is what it comes down to, after all you wouldn't buy a 2 seat sports car to carry around the missus, kids, the dog and your camping gear !
Each model has been an improvement on the last and I'd say my current bike is the best I've ever owned.
I ride mine quickly sometimes, I commute on it sometimes and I've toured Europe on it too.
Over the last few years I've been knocked off by numpty car driver and the engine/tank bars protected me from injury. I dropped it on a round about on diesel and it came away almost unscathed (engine bars again) on both occasions I rode the bike home with the only lasting damage being to my pride.
The KTM and Ducati have more power and they both look great but they would take back towards sports bike performance and the likelihood of loosing my licence rather quickly. My lack of will power would be my undoing.
So basically, it won't turn like an R1, it won't go like a Ninja and it probably won't stop as well either, but I can load it up with all I need, I can go where I want, I can do it as fast as I am comfortable with and pretty much go further than anything else I can sling a leg over.
What else can I say, it ticks ALL the boxes for me.
Martin