I think the Ag Center is entirely too long and obnoxious. It doesn't help you can't progress after doing it, that's for sure.
The combat, in general, needs a tune-up. The Ag Center is so rife with combat and the enemies there are so armor-happy (and don't drop bullets) that you literally are forced to kill everything with your fists. It's not even that challenging, it's just tedious. I was never once in danger of losing but because 3 of my rangers were gun-oriented completing the 'dungeon' was extremely slow. I'm also afraid that because there is so much combat, my rangers are way overleveled now. Though, it's hard to say without being able to play any further.
They need to make the combat encounters harder, but less frequent. They should probably make that fungal infection thing actually matter, because it never advanced or inhibited the abilities of my rangers. They also should consider changing the reactivity there - if you have high luck or persusion, you can determine that doctor is evil and the cause of everything. Otherwise, one of the other survivors gets blamed at the end? But maybe this isn't possible at this point, because it would require a lot of stupid voice acted lines and won't fit the game's story I guess...
Also, the difficulty of this game is like night and day if you try playing with low awareness/coordination rangers. Those stats are much too powerful in comparison to all the rest right now, there is literally no reason to give up those stats in favor of luck, strength or charisma. Intelligence is worth investing in for raising non-combat skils and you do need a fair amount of strength so you've got a decent life count (but 3 is basically enough), but the stats are really skewed right now.
The most positive thing I can say is those exploding spore plant things encouraged careful movement and positioning in battle, though they were rather annoying and seemingly became irrelevent after a certain point in the story, they were exploding on their own from really far away for whatever reason after a while.
Really, the most annoying thing so far is my entire team has 1 Charisma and it doesn't seem to effect anything. This is not at all what I was expecting. Maybe not 'stupid dialogue', but so far I haven't told any important NPCs to go fuck themselves, or made the game any harder by being a jerk.