I currently own a 2016 SL with 4K miles and love it. I've done a fair amount of mods including LED underflow, LED interior, battery jumper posts, rear fender , rear spoiler and a radar detector plus a few small others.
Alas, Ive got the bug to replace it with a 2018 or 2019 SLR.
I have bought several new bikes from these guys and can vouch for em!! They are straight up and mean what they say by "NO BS FEE'S"!!
Good dealership to work with too!! Hope this helps someone still waiting!!