I loved when the Captain was practicing his 'diplomatic' patter for the Tellarites.
...and Shran's confession about his relationship with Talas gave us an interesting insight into Andorian mating rituals.
And then there's the Romulans! This was a very 'busy' episode with information and mystery coming from every direction.
I hate multi-part stories and this one is unfortunately a 3 parter so I have to wait another fortnight before I now how it ties all the threads up. But Enterprise, more than any other series handles multiparters brilliantly. With the quality of the episodes so far this season I have no idea why Enterprise wasn't renewed for another season.
I've watched Star Trek from the first ep in the 60s, and I still think Enterprise is the pick of the bunch!!