Ive only seen the pics from exhibitions and shows. Looks decent enough. The Missenden Flyer on YouTube tested the 310R and it performed very well so the GS version should be decent. Unsurprisingly, as they're made in India, YouTube channels from India like Powerdrift have made pretty good, informative videos about the GS version.
Should fill the space below the 650 and 800 quite nicely and get new blood into the brand.