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Acceptable DL time here, no problems. I intentionally DL'd it at about 7:30 in the morning, figuring off-peak hours would be better.
 
I knew it would take a while to download on my home connection, so I went to the Apple store and it only took about 45min. over their wifi, I was pretty happy with that.
 
I will go to an apple shop next year my broadband is terrible, lucky if if get 6mb...

I suspect mine took 6 ish hours, I just left it going with the display off last night and installed it this morning.
 
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