Except that they don't do well in the wind, at least at this point. Part of the reason for that is they must practice throttle management to conserve the batteries. In doing so, the aircraft is flying slowly between manuevers and is more susceptible to gusts due to poorer penetration. In calm air it probably makes little difference, though.

In the average fliers hands, electric is probably not ready for prime time in pattern just yet. The top F3A pilots all get it free anyway, and Joe Average pattern flier will follow suit just to say he has the same equipment. The big dogs will fly what they get paid to fly, whether it be fuel, gas, or electric. I know one very well known world class F3A flier who has already said he will move back from electric to fuel next contest season.