Welcome from SW Scotland - just over the border - well, not that far!
Lots to love - nothing to loathe.
Like any car, they're not quite perfect but assuming you've done your basic research, you'll know they're at least 80% Mercedes so quality & reliability are not serious issues.
You've already come to the right place - lots of info and friendly advice on this forum to save you getting stiffed by the stealerships.
I strongly second the SRT recommendation - just taken mine to Edinburgh & back today - Devil's Beef Tub route - what a ride - what a blast!
Just do it - you will NOT regret it!
What bad stuff have you heard? Be specific - we can help!