No brainer, keep it and enjoy! From my experience, batteries lose charge (SOC) faster than I like, no matter what the SOH is. If this is your first EV then you just need to live with the car for a while before you get comfy with using it and overcoming range anxiety, and figuring out where, when & how often to charge. No matter what the SOH is. In the extremes, even a 9-bar car is useful to someone for around town.
It sounds like you may lose a bar soon. Feels bad when it happens but it's inevitable. Just make those miles count and enjoy the ride!
Ocean Blue 2014 S, 3.6kW OBC, no QC, purchased 10/21/17, 12 bars, Los Angeles
Car first sold in Buford Georgia
Dropped 1st bar 11/30/17
AmazingE 3.8 kW EVSE