It wasn't until I embraced the online social aspects of Diablo III that the game truly captured my heart. This is a game that's meant to be shared, whether it be in party filled with strangers working embroiled in a chaotic fight against the ridiculous amount of enemies the game throws at full parties of four players, to simply watching the achievements roll by, following the exploits of your friends from afar.
The inconvenience of server issues will pass; the only problem I've had over the past three days was a hiccup on the part of my cable internet provider. What won't pass, unless one lets it, is the disappointment of the solo player. To that player this is a well-crafted if repetitive dungeon crawler with an unfair restriction that could potentially compromise their enjoyment.
Play in a few public matches or get together with some friends, however, and Diablo III becomes a magical, transcendent and wonderfully social experience, well-worth the frustrations of its early days.