R9...I have one too.
I recently purchased the 'Goldfinger' (scoped) version of the R9 in .177 to fit the bill of a mid-sized, fairly flat shooting springer. I also own an aperture sighted R7 in .20, & an RWS 52 in .22. My choice for Weihrauch was based upon my most positive experiences with the R7 in the areas of accuracy, fit, finish and durability. If the gun's not accurate enough, it doesn't matter how potent it might be...
The R9 isn't yet broken in, but my first impressions are as I had suspected, that this is a superb gun. IMO, it could be the best choice for a 'generalist'...moderate weight, good power (930 fps w. a 7 gr, .177 pellet, for 14 ft-lbs), and superbly accurate.
Also IMO, it seems so many are taken in by the marketeers with their specs of incredible velocities & energy levels. Though having enough of both will afford extended ranges and margins when taking a variety of game, the R9 can do it at most reasonable airgun ranges, and without the 10 lbs of heft that comes along with a 20 ft-lb gun. I'd much prefer hauling my R9 in the field for an afternoon of shooting than my RWS 52. Again, the R9 may well be the most optimally sized & balanced spring airgun on the market.