How good is NEX image stabilisation?

Just how good is the NEX image stabilisation?
Well from these samples, using the 18-200mm on a NEX-5n, its very good indeed.

1/10th. sec. 100mm hand-held

1/10th. sec. 200mm. Hand held.

1/25th. sec. 200mm Hand held.

1/10th. sec. 200mm. Hand held.