I think its getting a bit thin in the story line dpertment, the same plot ideas are getting recycled over and over again. I definitely think they need to shake things up and bring in some new blood in the production and writing staff.
The first couple of seasons were good, a whole story could be encapsulated in an hour and you could expect a new story next week. This season is like the last few seasons of DS9, the storyline was so long and the episodes al interconnected that if you missed one, you were more than a bit lost when you saw the next. I'd hate to see Enterprise go the way DS9 did (crossing over from Sci Fi to a soap opera in space) I followed DS9 for the first 4 or 5 seasons but it became unwatchable to me after that.
I might be one of the few Star Trek fans you'll find that will defend the Voyager series. I felt it was the most faithful to the ideas and stories of the original series. Really far away from home in the midst of the unknown, often having to make it up as you go along and throwing the rule book out the window to get a job done sometimes. Then there's the "cowboy" edge that comes with being out on the "Frontier" that shoot first and ask questions later sort of attitude that we often saw with Kirk and company.
Voyager was an encapsulated story that didn't deviate a whole lot from its initial story line during its run, whatever the subplots were, the bottom line was getting the ship and crew home, by any means possible. It was like they had written the entire story begining to end before puting any of it to film, none of the stories felt out of place and I think thats why I enjoyed it so much.
With this Enterprise season, this entire Xindi weapon story should have been made into a two hour pilot episode for the season and been done with. Dragging it on for so long shows a tremendous level of complacency on the part of the story writing, editing, and production people, I just want to take them all by their collective shirt collars, give em' a good shake and say "Get to the point and get on with a new story! You're making television, not feature films!"