Okay, just finished it and now I see why people hate it. At first I thought it was just a pleasant little romp through the restaurant, sewers, and then the vase mansion...until I got to the safe...and found out the key I needed was actually in the part of the sewers that I skipped...and it accounted for about 60% of the entire level. Once you know some shortcuts, it's not too bad, but, yeah, fumbling around took two hours and that includes save scumming here and there.
Next mission is to find a sword in another mansion. We'll see how it goes later.
Take me down from the ridge where the summer ends
And watch the city spread out just like a jet's flame