'Tis alright, I suppose. I burned out on D2, so I doubt I'll play it again (also, the reason why I didn't get D3). I certainly wouldn't stop others from playing it, though - whatever floats your boat.
I don't think that strategy guide will help you, though - if it's for the vanilla version it certainly wouldn't - the patches rejigged everything - the 1.10 one in particular was a large game changer (pun intended). Well, it mostly made the many builds obsolete and the rest turned more boring but practical. Last patch I heard about was 1.12, I believe but I had stopped playing at that point, they may be up to 1.14-1.15 or something nowadays. Just look up builds/guides online, I remember using the ones on GameFAQs quite a lot. Or I dunno, if the Blizzard forums are inhabited and aren't a hellhole, you might try them, alternatively other specialised forums.