ATYCLB was welcomed with praise and a little derise. I think most people liked it initially, of course you have that segment of U2 fans that would like it if it were Bono farting for 4 mintues, but also to be fair any new U2 is going to be exciting, unless it's downright poor.
The detractors of ATYCLB were loud and remained loud, and for all intents and purpposes are still loud, it's just that it seems that there are more now than there were then. The album (ATYCLB) didn't seem to age well. Very digestable, but ultimately it was only about 5 or 6 songs strong. This is highly subjective, but I think that is a fairly accurate consensus opinion. It's a good album, maybe not as strong as their other work, considering some of the songs weren't maybe as strong. Again, this is very subjective, just putting together an opinion on what I've seen on this board over the last 4 years.
As for HTDAAB, it's too early to tell, people were praising ATYCLB too, and as I said it didn't seem to age well with a lot of people.
My guess is that HTDAAB is much much stronger on a whole for the entire fanbase. I can't really offer my opinions on the whole album, I've just downloaded the 5 songs that were already leaked in some fashion or another (have to look forward to something) so I'll wait for the official release for the other 6 tracks. And I'll be downloading Fast Cars as soon as it's available, I live in the US so I won't be getting it officially anyways.
My personal opinion is that the 5 songs I've heard from HTDAAB are far and away, clearly better than the 5 weakest tracks from ATYCLB.
But overall, I would say that ATYCLB met a lot of praise when it was leaked. I guess HTDAAB is too, it's much too early to tell.