

For people that really love Dark Souls and have finished it repeatedly, including challenge runs? Five hours is probably taking your time, using rubbish weapons for a laugh. For your first time playing through, hell no - probably more like thirty. The first DS has some unreasonable traps for the unwary - one of the stats is a dead end, many of the weapons scale really badly. Maybe better to start with Scholar or 3, that are better balanced.
Well, yes. But I would argue that if you have the skills to defeat eg. the Draconic Sentinel with just two runes, then it’s probably not your first rodeo. Stumbling over all the steps to eg. Varre or Hyettas quests on an unguided playthrough, which require specific things in a certain order in a huge world, are not particularly likely either. Its size works against it in that regard.