Hey all I just posted a recent review of my flight in biz elite on Delta. The whole review with pics is on my blog. It's not a super in depth review like you'll see here but it hits all the major points. It's from a nonrev perspective (sorry guys!) so the whole sky priority process isn't included in the review since I obviously didn't get to use any of those perks. The link is below but here's a brief rundown of my thoughts.
DL is taking a step in the right direction with it's refurbishment of the planes to include lie flat seats. Plenty of entertainment on the seatback tvs, the food was pretty good, service was great. Although I do have a complaint about the seats that makes it somewhat uncomfortable for tall folk like myself, the service, product, food, etc are all taking steps toward leveling the playing field with the international carriers. The asking price when I looked for the flight was 305,000 skypesos or about $8000. I personally wouldn't pay that but I'm sure there are plenty who will or DL wouldn't be charging that much. Anyway I'll stop blabbing since no one cares to read this paragraph since the full review is on another page.
http://talesofanonrev.com/delta-business-elite/