Had this bike for a week as a courtesy bike and did 500 miles in wet cold windy and occasionally sunny weather.
First impressions were not great as I was battered by heavy rain and wind for about 90 miles and less rain and spray for another 60. Weather protection not as good as the K12, I tried the windscreen up and down with little noticeable effect other than noise. I believe you can mount it in 2 positions by unbolting it and refitting on another set of lugs but I didn't get that far. I thought the bulk of the front end of the bike and the engine would help but it didn't. The aerodynamics are smooth enough in better weather, not when it gets unpleasant.
The fancy display screen gets covered in water when its raining and the small print is difficult to read. The display has various options. I started off with one that had a linear rev counter but I binned that one as it was difficult to see, and used one that had the speed in big digital numbers which given my recent record was the most appropriate. I would guess you can tailor the display by fiddling in the menus somewhere but I just wanted to keep it simple.There's a conventional speedo too but I more or less ignored that as the big numbers were easier.
Took a few miles to figure out all the buttons and switches on the left hand bar especially in the dark but I found I don't really need all of them. The high beam button is a flick with your forefinger which was a bit odd. Cruise control was a faff initially but I got used to it, the only niggle was its difficult to be smooth when disengaging, if you don't accelerate slightly so you know you've caught the engine with the throttle then theres a jerk of deceleration as you brake or disengage.
It did 53.7mpg first tank and then 58.7mpg with the cruise control nailed on 70. Call it 56mpg average. Would have saved me nearly £1700 over the last 3 years / 54000 miles compared to the 43mpg of the K. I managed to squeeze 17litres in after 221 miles and getting down to range = 2 without knowing the tank size or the fuel gauge reliability but have just found out its 18 litres so 200 mile tank range easy.
I dare say you might ride it a bit harder as it loosens up , there was a noticeable difference in the response when I picked it up at 512miles and gave it back at 1020. However the early instant torque response soon becomes breathless, which isnt what the mags say, maybe still not run in, but you are past traffic easy and I can understand why the engine is liked by so many. Its no sports bike though, more tourer, whereas I think the K is more sports than touring. Very light clutch, goes into first so quietly I had to check it was in gear. If you are doing less than 10mph per gear it chugs a bit, especially at lower speeds. I found myself in 3rd a lot around Hinkley.
The suspension is plusher than mine, I tried road and dynamic but stuck with road as I bounced around the Somerset lanes as dynamic was a bit crashy over the bumps. I'm sure there is infinite electronic menus to adjust to your liking but I didn't have the time or daylight to fiddle and ride the various combinations. Initially I could feel the steering pushing back at me and was having to use the widespread bars to lever it into corners, but that went off after a few days, maybe the tyres hadn't been scrubbed in. There were a few funny sensations of the tyres moving on the road, it was slippery and wet generally, but after the first couple I wasn't too worried as the bike didn't get upset. Forgot to note the tyres but not as positive in the wet corners as my PR3s. The brakes are very good, at least as good as my K12.
The riding position reminded me of my old Suzuki TS trail bikes that I started riding on in 1978. Sitting up and you can see further. I was pleased I could get my feet down, sufficiently lower seat than a GS to be comfortable at the lights. There's a bit of shuffle space in the seat too. However the water runs into your crutch in the rain.
Mirrors ok and blur free, just a bit small
The main beam headlight is crap, like riding into a black hole, and could not find how to adjust it, dealer having a look. Good spread on dip though. The rear lights spread so wide I kept catching sight of the light in the corner of my eye, makes you think there's something behind you when there isn't.
The heated handgrips are a typical bmw quirk, 1 press for maximum heat which is almost too hot, 2 presses for low, but with first frost of the year on the seat, thank you anyway i'll have some of that
There was a rack on it which my large soft bag went straight onto with the strap underneath and a couple of the tie straps that come with the bag fixed to the grab rail. So easy I am contemplating getting a carrier for the K. My tankbag strapped vertically to the front of the bag with a couple of bungees. Still plenty of room from me.
If i was given one I'd probably keep it, but spend £12k on it - no chance. I'd say a bike for maybe the 8 months of the year when the weather isn't too bad. If they put a half fairing or K style fairing on it it and dropped the riding position a bit, it would be a better proposition.