Not got one but have done the research and Gipro come out tops. It fits into the OEM loom so no cutting required. Don't get the cheap ones as some have a sensor round the gear shifter, they are dog poo
I got an acumen which was plug and play, very easy to Install can't fault Also heard good reviews on GI as above
Got one as standard on my 12 and its very handy. It was always something I meant to get on my 09 but never got round to it. As said above it defo stops you looking for 7th gear !
Absolutely! For a bike with such a high performance it's incredible how tractable my 'blade is and I've even found myself bimbling along at 28mph in 'top' gear in a '30' zone! You do get the odd 'clever-dick' who goes; "I don't need one and neither shud you. You shud always know what gear's selected" Pointing out that even F1 drivers feel the need to have one in the middle of the steering wheel of their 'save every gram!' racing cars usually shuts the twats up.