Are wheeled backpacks actually worth it compared to a regular roller or backpack?

The honest consensus from r/onebag and r/HerOneBag threads is that wheeled backpacks are the 'worst of both worlds' in pure performance terms: heavier than a normal backpack and less smooth than a dedicated roller. They make sense if you genuinely need both modes (e.g., cobblestone streets followed by long airport corridors) and accept the weight penalty, typically 4–6+ pounds empty.