Have had some time to spend with the MAP and my experiences are below.
There's nothing scary or mysterious to these bad boys. You can pull them apart to thoroughly clean, which I absolutely love. It is tricky getting that blasted little silicone cap in the right place but that's about the only thing I hesitate a second over.
I experienced some really dark juice in my 3.2 ohm the first time I filled it and the silicone cap was sitting less than perfectly straight. The first time I cleaned it I ended up with two silicone caps floating in the liquid (and yes I vaped that Fruit Stripe anyway until the patience returned to do it right). The last time - sorry, I forgot how I did it - I got it right and the vape's been fabulous and the juice didn't turn as deadly dark.
The juice oxidizes...is that correct? I just snagged a mini...love these things!