First recommendation: Do not make any judgements on this album based on other's reviews, including this one. Just get this disc. This statement may not be true for the work of other bands, but Opeth is in an entirely unique class of their own.
I read one review in which the author actually says they are NOT recommending this disc, what is this numbskull thinking?
Second recommendation: Just get this disc, period. It's worth repeating. There really isn't a 'not good' song here, or a not good part of a song, or on any other Opeth disc for that matter. Who cares who thinks so and so part in so and so song is weak, or shouldn't be there, or is 'weird', or whatever. This is Opeth, a different set of standards apply here.
I've got a sneaky suspicion that this music is created as an outlet for the vision that IS Opeth, and that makes every part of every song an integral ingredient. If you don't agree with a certain part or line or lick or whatever, listen to it again, and again, and again, eventually you'll come to your senses and have one of those A-HA! moments and say to yourself "What was I thinking?!"
The creativity displayed by this band is seemingly endless and a welcome reprieve from the monotony of conformist society. There is SO much crappy music out there, treat yourself to something special, Opeth! Go ahead you deserve it!
I can't quite make out what Mikael is saying, but the ending of BTPISIO sounds quite like it was recorded backwards, anyone able to hear it clearly enough to decipher it?
Third recommendation: Katatonia
Oh yeah, just get the bloody disc.