Totally broken on my machine.
After activating Alfred, I type "ens" and a space, and it looks like it is going to do a search. So far, so good... But as soon as I type any character after the space, the Evernote search disappears and Alfred tells me it is going to do a Google search for ens.
If I just type "ens" and hit enter, it runs an Evernote sync.