Thank God, I own 2 Fords including a Focus Electric. Sync has been by far the most painful part of ownership. Unintuitive, slow, buggy, flakey bluetooth - just a terrible user experience.
How do you otherwise like the electric? I might have done some work on that.
Its good for around town driving, stressful for longer trips due to varying range (50-80 miles). Biggest complaint is because it is FWD, and the battery in back, traction is terrible going from a stop up hills, or on wet surfaces.
Unfortunately Sync 3 is not compatible with older hardware.