We launched a Beta from scratch using XF just 10 days ago and here's our stats:
2,877 Discussions
54,827 Messages
3,260 Members
we started the Beta by telling 16 people and asked them if they knew anyone that could come in and help shake down the technology and as well help build content for our formal launch on March 1. Have had very few if any problems with the technology other than the expected habit changes from members use to vB on other travel forums. As this is a savvy first adopter crowd of travelers, many questions about apps and mobile strategy but that of course has been commented upon as coming. Very, very happy of the choice with XF and later this week moving to Amazon EC2 as we expect big things once we go live. Just can't say enough positive things about XF and we're only looking forward to when our Beta members get tired of asking about our algorithms related to Trophies—it's the frequent flyer mile obsession they have!
milepoint.com/beta