This episode isn't only about the laughs, the story does move on too. Robin and Tedd getting back in touch, Robin getting noticed finally for her efforts, Lilly and Marshall figuring out parenthood all add up to make a great episode.
However, the one thing that was most eye-catching in this episode was Barney's feelings for Quin. He lets his guard down and lets Tedd in at least for a moment.
All in all this was a fresh enjoyable episode hence i give it 10/10. Thanks to this one we are set up brilliantly for the season climax.