The first thing I noticed last night is that Hillary came out fighting and things got real very fast.
For his part Sanders dinged Hillary for not releasing her speech transcripts, taking money from folks associated with fossil fuel companies, for poor judgement about the Iraq war, and her tepid support for raising the minimum wage to $15 an hour.
On the flip side Hillary nailed Bernie for refusal to support some gun control measures, not releasing his taxes, and for accusing her of being in the pocket of big banks.
My personal take was that Hillary got a lot of good body blows in (The worst of which might have been asking Sanders to apologize to the Sandy Hook families, and his refusal to do so.), some of which left Sanders standing with his mouth agape and his hand up as if he was an elderly man asking for a glass of water in a busy restaurant.
Hillary had very little respect for the time limits, and would talk over both the moderators and Sanders when they tried to get a word in edgewise. She clearly had points she wanted to make, and damn if anybody was going to shut her up before she had made them.
I am not sure why the Sanders team pushed so hard to get this debate, because overall I think this helped Clinton in New York more than it did Sanders.
You can read more about the debate here, here, and here.