Already the paint on the frame has a few scratches as the seat seems to be a rather tight fit. The bracket the slides under the tank, could do with a little filing down, so it fits, and that underseat bracket [pictured] seems to get in the way.
Also I don't see anything that will stop the front of the seat from being squashed down when sat on.
But all that aside its seems like a good quality product, that will look fantastic when fitted and painted!
Will have another try tomorrow and maybe let my painter take a look too.