I've seen the ads everywhere for Ally, as I'm sure most of you have. Didn't think much about it as I don't plan on parking cash in a high interest account (which is the product I see most often advertised by Ally).
I was quite surprised when found out that Ally is the former GMAC financing. GMAC was one of the major losers in the credit crisis and probably would have failed if not for the US Government. Just something to keep in mind when doing your due diligence on where to park your cash.