@shanebpdev – sorry, just seen your comment. Thanks for the feedback.
The client is partnered with a publishing company, and uses the publishing company’s servers — unfortunately, I don’t have too many details on the specification — concentrating on the development side of this project.
At one stage, we had considerable server problems (when we were handling 100 / 1000s of new member registrations each day). I suspect though that this was due in no small part to the number of DB queries being fired off on each page view. Hopefully, that issue is considerably reduced with 1.7+. We’re still 1.6.x for Enterprise Nation.