From the date on this question, my response may not be germane any more, but this is the first time I've seen the site live on the cimug.ucaiug.org URL so I'll add my 2¢.
The site is much quicker to respond than the old Sharepoint site.
Although more responsive, it's still just Sharepoint so there's lots of wasted real-estate (see image):
The Jumbotron/Carousel is nice, but needs a couple of more images of content to be useful.
All the original links/areas/groups seem to be ported over from the old site... but I haven't done a thorough check or anything.
Still broken link:
On page http://cimug.ucaiug.org/Current%20Official%20CIM%20Model%20Releases/Forms/Custom%20All%20Documents.aspx, the EA Lite link should be https://www.sparxsystems.eu/enterprisearchitect/ea-lite-edition/ (not http://www.sparxsystems.eu/default.asp?nav=3x14&lid=32)
Still sorting arbitrarily:
On page http://cimug.ucaiug.org/Lists/Issues/AllItems.aspx, the sort order is by IssueId (which somehow isn't related to the date created, but it's similar) which means the oldest items are listed first, giving the impression that there hasn't been any activity in eight or nine years. If it were to revrese sort by creation date, then at least the most recent items would show up - rather than having it look like a ghost town.