After reading many positive posts about this attraction in recent months (I saw MILF in April), I am inclined to give it another try. When I saw the show, the animation was very choppy (all but one of the monsters' mouths didn't move). Also, I read Kevin Yee's article on MA, and was very disappointed to note that every single jokeduring my show (several months later than his preview) featured every single joke Yee mentioned in his article word for word. I expect some things to be repeated (such as with Turtle Talk), but my experience was completely scripted and featured technology that was functioning poorly (I thought it was very bad show to allow it to go live in the condition I saw it in...I mean the animation was really choppy and stunted.)
I also texted a family-friendly joke, and was charged for it, yet that was apparently not working either, as that segment was one scripted joke and that's it.
So, anyway, my experience in April was abysmal. I was surprised that for the first time ever, I found zero enjoyment in a WDW, DL, or DLP attraction (even Stitch wasn't as bad as my personal experience in MILF). I am heartened by posts saying how the show was lively and interactive (missing from my show), and the improvements mentioned by the OP also go a long way. I am truly hoping to be pleasantly surprised on my next trip in May.
Did anyone see MILF in previews during early winter or after the official opening in spring (like me in April), and can say whether they find the attraction better now?