For the most part, the reviews are pretty spot on. I didn't mind the rear shock, and i did get some air on mine. it will probably get a better unit down the road though when it starts getting too mushy, its not even preload adjustable. lol. One thing i -can- say is it suffers from hondas typical final drive mistakes. for example, the 1st thign i did to my cb1100 was to go down 1 on the front, and i've never looked back. I swear they find the right spot then add another tooth, on that bike it will hit 100 at the top of 3rd, and its a 6 speed. lol.
On the XR, top gear is sort of useless unless you are dead flatland or downhill, or weigh 120 lbs. Reading on the adv riderboard from way back on these (there's a whole thread on them back to like 2013 or 2014) a consensus is to drop the ft sprocket to a 16 vs the stock 17. that might be a bit much, but i'm going to try it. if its too much, i'll go up 2 on the back and put the 17 back up front. 5th gear is lugging pretty bad, i bet the top speed goes up a hair as well. Luckily the speedo is driven off the front wheel like its supposed to be, so gearing changes won't throw the speedometer off.
side note on the carb: its 22mm wide, but has like a 27 or 28mm travel, its an oval venturi, so not like a typical 'round' slide.