Visiting Wales scored three tries at Twickenham in their first World Cup warm-up fixture.
"We're pretty happy with that. We've scored three tries to their two," said the 47-year-old coach.
"We've put in a strong second-half performance and we can build on it.
"We can improve on our accuracy but our first-up tackling was pretty good and it's a good start for us overall."
The two sides meet again on Saturday, August 13 at the Millennium Stadium.