My commentaries are about the ending. I find hard to believe that a secret spy complex would have a huge not concealed metallic door that could/would be opened from outside with not a single password or even internal guard and that it would lead directly to the main room of the complex. Secondly, as soon as Archer found the evidence he would/should let the Vulcans and Andorians deal with it, not taking part or picking a side (the first directive was not "on" yet, I supose), or, in any case, he should take the Vulcans side since they were some kind of allies.. In summary, this end makes no sense to me.