It's consistent, solid, well planned, and with no flaws in term of bad or boring songs. A good, enjoyable album.
Still, even if there are some epic moments here and there, there's not really a full song which is absolutely memorable and definitely in top 10 of their repertoire... IMO.
ADTOE had many more ups and downs, best songs are better than DT 12, but too many boring or uninteresting parts. BC&SL same story...
Actually the last album with all great pieces without flaws is....
Well...
SFAM? All the others have at least one weak song. SDOIT maybe too, not 100% perfect but pretty close, anyway bit closer than Octavarium.