I had a great time re-watching this. I think it's a very underrated episode. First, I just love the Kreetassans. And Archer thought Vulcans were a pain - ha!
My favorite thing about this episode is that all of the main cast has something important to do - Reed's force field, Travis apologizing to the Kreetassans, T'Pol and Hoshi working together on the language, Phlox analyzing the creature, and Trip and Jon getting caught. We even get some good scenes with non-regulars, too. I like any scene with Rostov (he's cute!), and Kelly is quite good, too. As with Cutler, I always wished we'd seen more of her.
I like the scene where Trip consults T'Pol regarding Archer's mood. He disregards her advice, but it shows that T'Pol is getting better and better at reading the crew, especially Archer. Trip's attempts to cheer up Jon are great! I didn't realize they had a pool table on board. So, we know they have movie night, basketball, and pool. I wonder what other recreation options are available? The "date" scene in Archer's quarters must be a Jon/Trip 'shipper's dream come true. One thing about it bothered me, though: Trip's shirt. Ugh, that thing was ugly.
Was it just me, or was Malcolm pretty eager to get Hoshi to watch the movie? A Malcolm/Hoshi shipper could read a lot into that particular scene.
The scene in the Mess Hall between Travis and Malcolm is good. ("You promised me explosions!"

) If Malcolm and Trip hadn't gotten so close, I could see how Travis/Malcolm could have been a really good friendship on the show. From "Broken Bow" on they interact easily with each other. Malcolm seems to let down some of his reserve around Travis.
They did a really good job setting the mood in the cargo bay. I've always thought Ent did scary really well. I found it interesting that Trip was the one to start freaking out when they realized they were linked together. Time and time again we see that Mr. Extrovert is actually a very private person.
The one thing I wish they had done differently was that I wish there had been something shown of the aftermath of the five people being given a glimpse into each others' heads. That must have been...awkward!
Phlox's protective behavior toward the tentacle reminded me of something we'd have seen in
Next Generation. It was ethical, yes, but I could completely understand Reed's frustration with him.
I thought the scenes between Hoshi and T'Pol were great! They did have a nice friendship scene in "Sleeping Dogs," but here we learn that Hoshi still feels like T'Pol has been too critical of her, and she resents it. T'Pol's explanation that she believes Hoshi is capable of meeting her high standard was exactly what Hoshi needed to hear. I've read a lot of stories where Hoshi and T'Pol are BFFs, and while I do think they become closer as the series progresses, I think their personalities are just too different for that. I don't think it would be out of character, though, for T'Pol to occasionally go to Hoshi for advice on human men. I just think that episodes like this one show that the two are never going to be the type of friends who sit around gossiping and doing their nails together. It's not in T'Pol's personality, and I don't get the impression Hoshi could be that comfortable with her.