Right where do I start
I'll preface it by stating, despite issues, I love mine to bits. It's stunningly able at what it does.
But, it's been a tortured relationship. it's now on 26000 miles, when it was on 13000 miles I worked out that 10% of that had been on the 100 miles return trip to Williams Manchester to get various problems fixed.
Within 300 miles of first collecting it it refused to tickover at less that 3000 rpm. Which made traffic work interesting. Apparently this was an airbox fault which would warp with heat and keep a sensor stuck or summat.
Other items fixed have been the
rear suspension arms (twice) warranty recall
rear bevel housing for corrosion, within 4 months the replacement was as bad.
main stand snapped at the point where you press down on the stand, lots did it, I insisted on a K1300GT replacement as they're a better design.
left switchgear failed, well the cruise control bit did. Was tracked to switch corrosion BMW said corrosion wasnt covered under warranty, I threw a strop and reminded them I had a 30 year old suzuki GN400 in the back yard that sat in all weathers and its switches worked as intended, they backed down and replaced it.
ASC (traction) switch fell out of its housing, replaced under warranty (twice)
Rear heated seat switch fell out of its housing, replaced under warranty.
Steering dampener replaced as a recall.
Brake pad warning cable snapped, known issue replaced under warranty
Clutch basket replaced due to rattling, known issue replaced under warranty
Clutch plates replaced due to squealing, known issue replaced under warranty
Cam chain tensioner replaced, known issue replaced under warranty
Lower sprocket cam chain guard fitted, known issue, had to argue to get it done, but now it's a recall issue.
Rear ESA failed, replaced under warranty just as well as it's £1800 just for the shock!
Starter system wiring loom fitted to sort hot starting issue, known problem and a recall.
There's been a few FI remaps
My trip meter's recently started acting up
They're fairly heavy but the mass vanishes once moving. They like tyres tho'
The "traction" ASC is good and has stepped in twice on mud for me and possibly saved an incident. It's stepped in many more times when accelerating hard to stop a more than 6" wheelie developing, it can be turned off easily by simply holding the switch in for a few seconds.
Comfort is brilliant, Ullapool to Wrexham is almost exactly 500 miles, done it a few times and would happily turn around and go back the same day
Economy is fantastic if restraint is used, on one motorway trip I set the cruise control at 68 mph and got 65+ mpg!!!
Never seems to dip below 45 tho' but I imagine a flat out run on the autobahn may fix that.
I've had it on the sat nav at 153, speedo was fairly close.
Gearbox is clunky into first but not bad after that.
Servicing has been reasonable to be honest.
Radiator design is pants, it's an inverted triangle shape and the pointy bit at the bottom is where the fan is, which is also behind the ineffective front mudguard. The rad gets blocked and the fan goes into overdrive in the summer in slow traffic.
At some point I'll get a fender extender.
Electric screen is good, maybe not quite as good as the RT but then I prefer the mirror position on the GT as I find the RT's not right for eyeline.
The linked brakes work well, BMW brake pads are a hideous price, I put in EBC but wish I'd put BM ones in the rear as the std ones are not sintered on the rear which means when you put in sintered ones it makes the rear brake a bit "bitier" than it should. EBC's work fine on the front, however if you use not std pads you lose the brake pad warning function.
Tyre pressure monitors are great and potentially saved some grief as it warned me of pressure loss before I felt it at speed on the motorway.
Heated seats and grips get very hot which is great on a cold ride out.
Seat is height adjustable but I find the low position bends my knees too much. I'm 32" inside leg and have no probs getting my feet down in the high position.
Performance is stunning, sports bike riders get really upset as they "assume" from the fairing and panniers that it's a lardy slow tourer. They get really brassed off to find SS Titanic stuck to their number plate. The ESA is very noticible between soft and bouncy comfort to firm and controlled sport.
I think that covers it

I'll repeat despite the teething issues I love it to bits. I'm kind of loathe to change mine now I've had all the probs fixed

... although a healthy paranoia keeps me on BMW's extended warranty ... just in case
