When I replayed DA:O for the first time three years ago, the Orzammar main quest seemed to go on for ages. During this ongoing third playthrough I actually felt like the Deep Roads exploration was split up in reasonably sized chunks, but my new Mage-heavy party composition probably had something to do with that. Only the final battle (see video #14 in this playlist) was just as exhausting as I remembered from my pre-Nightmare days.
Currently, Demiath has 31,953 views for Dragon Age: Origins across 53 videos. There's close to 10 hours worth of content for Dragon Age: Origins published on his channel, roughly 1.63% of the content that Demiath has uploaded to YouTube.