I have a 2019 Leaf SV that i purchased in Nov 2019.
I've had no problems until now. The Connect EV app is no longer showing the correct battery status. It's now showing random battery statuses from either Dec 2019 or Jan 2020. I called support and went thru the steps that appears to show...
I would also suggest buying new.
I bought my 2019 SV 40 for $31,200 but after state $2500, electric company $3500, and fed $7500, my purchase price was $17,700