The acting by all parties was up the the higher standards of most of the episodes. And the plot and crime were not without interest.
But without a doubt, the episode could have put any other names to the characters and in would not have made much difference.
Holmes is accused of murdering a young women several years before we meet him, when his drug habit was almost totally to the point of consuming him. He has no memory of the time and believes himself capable of perhaps having done it. Watson is convinced otherwise.
Now this story line could have been interesting if it had been handle in a more Sherlockian kind of way. But instead the plot fell along the lines of the oft repeated scenario of a crocked politician. We have seen that plot devise way to many times already.
I have never liked the consistent reference to the drug habits of Mr. Holmes that sometimes pops up way to often in this series, especially to how addictive Holmes was. To much of his personality in Elementary is determined by that, and it has become tiresome, at least for me.
So on that note, I can only give this episode, for it's lack of really much to do with Sherlock Holmes, even more so than usual;
We just have to quit cutting this show Sherlockian slack.