I hope I'm allowed to make this thread... I found a copy in a comic shop yesterday, so it seems it's starting to trickle out to the public.
Awesome volume, I'm really enjoying the GSC story so far!
There have been no major content changes that I'm aware of. All of Gold's Pokemon nicknames are "-bo" now: Aibo (Ataro), Exbo (Explotaro), Sunbo (Sintaro), Polibo (Poltaro). The round titles are different from Chuang Yi's and are in the style of VIZ's previous chapters (i.e. generally lame puns). No glaring errors as far as I could see in terms of spelling and what not, and I was mildly impressed they kept the Fisherman's cigarette XD