I saw this as a good to almost very good standalone episode. A little "soapboxy" or exposition heavy regarding battered women, but hard to get around that to a point.
What I really liked was the "competence porn". As dijassaid, they didn't seem to need Gibbs, and were a well-oiled machine. Tony could bug McGee, but didn't come off looking foolish. That's when I like the show best.
Next week could be interesting - especially with the little CBS puzzle to solve.
I thought that the case and the perp were too predictable to me especially for a February sweeps episode. I was hoping that there would be some kind of twist somewhere but, I liked the bickering in bar between Tony and Ziva and the interactions between the team members.