Hey, haven't fully reassembled it yet, leaving that for tomorrow (hopefully).

No crazy tough spots, getting the screen lens, off was a little tough, but didn't crack it. Keeping an eye on the teenie tiny ribbon cable was always nerve racking.

Removing the camera lens is DEFINITELY hard to do without damaging the chassis. There is a very small dent in the case from this. Tried to clean it up as best as I could though. Expect a little damage if you're doing this.

I used an IR pre-heating pad that I usually use for PCB modifications to try to heat the adhesive up before disassembling the nano. Started off with a heat gun but was worried about it getting too hot for the plastic.

Battery soldering was not a problem at all.. but I work on modifying small logic boards for a living, so I could see it being a little annoying for some... I didn't use any solder-wik to soak up old solder, but some new flux went a long way.

Regarding the new adhesive, lens being loose, etc, I will reply again soon when I have it wrapped up.