I agree with the three previous posts.
Early on, I didn't notice the grabby brakes very much.
Had begun to notice it after about a year of vehicle use, ~8000 miles, and I had the TSB software change done, and initially thought it might be a bit better, although really hard to discern with the grabby brakes being only an occasional thing.
But after about 6 months of TSB software change use, I think the grabby brakes are getting worse.
But as Dave says, they are somewhat infrequent.
But really annoying when it happens because it makes the LEAF driver look like an idiot that doesn't know how to brake properly.
It is my speculation that Nissan has software that is occasionally conflicting.
Most of the time, the software demanding creep seems to be smart enough to get out of the way and let the driver properly brake the vehicle.
But occasionally, the moment you slightly release braking force, the creep software kicks in, causing the driver to then have to rapidly reapply the brakes, and get into a stupidly frustrating jerky braking operation.
If Nissan would just get rid of the dangerous built in creep the car would be a lot better.
Creep may be what the software engineer intended.
But it results in unintended movement of the vehicle that the driver did not intend.
Which is dangerous.
I have yet to write the letter to NTSB, but I am frustrated by Nissan's lack of corrective action on this significant problem.