Im 55 and bought my AT in 2016. Im at 16k miles now and still loving it. The AT does have a bunk mate of a 2017 KTM 690 Enduro R.
I have had some starting issues and battery drain from the AT. I started tearing it down yesterday to undo all the wiring I have placed and install the Eastern Beaver fuse block. I did decide today that while its torn down so far, farings ,tank,etc... That I better go ahead and do the valve inspection. No videos of this process online so I hope to post it on youtube sometime in the next few weeks.
'16 CRF1000L, '17 KTM Enduro R