Behind the scenes logistics including travel and transport, ticketing and catering were all part of this testing, but of course while members of the ER2015 management were on site your feedback will be passed on as part of the de-briefing process.
The 27,411 supporters who flocked to stadiummk created a record attendance for the venue, and similar crowds are expected for the three games later in the year - France v Canada, Samoa v Japan and Fiji v Uruguay.
So let us know what was good from your perspective, what you enjoyed, and what you feel could be improved.
Please keep your comments constructive, and thank you for giving your opinions!
To send your comments use the Get in Touch form that can be found at www.northamptonsaints.co.uk/SaintsNation/GetinTouch