Its not out of line with some other polls coming out. Don’t know about their reputation, but RCP is including it in their weightings.
http://www.realclearpolitics.com/epolls/2012/president/mi/michigan_romney_vs_obama-1811.html
Other than one democrat poll, gaybama is polling around 46%-47%
That is a freaking disaster for an incumbent who has staked his whole candidacy on saving the auto industry.