With one win and one loss from their opening two games of this year's tournament, England made seven changes for their encounter with the Irish on Saturday at Twickenham.
And they did not disappoint in front of their home fans, carving out a 17-10 win which moves them joint top of the table, along with Ireland and France.
It was not all straight forward though, with Ireland hitting back following Sarah Hunter's early try for England to lead 10-7.
But with Kay Wilson and Marlie Packer also crossing the whitewash, England made amends for last year's 25-0 loss to the same opponents and Street believes it all bodes well going forward.
"Ireland are an excellent team and I thought they defended brilliantly," said Street.
"Some of our rugby was outstanding at times and it was a great game of women's rugby, in front of a great crowd with 15,000 here.
"We are still building towards the World Cup later this year and that was a really important win."