I got it on friday night.
yea it has good single player. and when you play online if you are not in a party, you do alot of the game alone. i dont understand it kinda but it is awesome still because its not like wow and way more original.
Instead of MF you have Luck items, Luck adds to everything that happens in the game. More rare monsters, more items, The item system is Enhanced, Rare, Legendary, and the highest Unique. I've found two uniques so far, and compared to D2, Uniques are DEFINITELY useful, they have lots of mods. They even have Sockets, and you find the jewel things that you put in weapons
I'd have to say no. I've tried playing with a high ping. Its bearable if you are used to delays on cast times and stuff