The first 4 eps were incredibly boring, I wondered "how can one show have so many inane conversations"?! About shaking printing cartridges, etc. It was basically filler for the first 5 hours!
Even later, many scenes (the production meetings, the meetings in the big boss' office, Ken Doll and paper lady's storyline) remained very repetitive and very boring.
For all the talk about the team producing 2D1N, I was also disappointed that we barely saw any shooting.
Luckily, it wasn't all bad: any scene focusing on our main four was good, they were all very likable, and I was rooting for pretty much any combination of the four, so the watching experience was still good. I just had to fast-forward a lot around the good bits...