Drum mixers vs newer models - which offers better efficiency for contractors?

Been trying to level up my small contracting setup, and I'm stuck choosing between sticking with the old-school drum mixers I know or jumping to these newer mixer models everyone keeps talking about. I do mostly driveway pads and small foundations, nothing huge, but my crew and I are short on time and energy these days. If the newer stuff really speeds things up or saves my back from more abuse, I’m all ears. On the flip side, I hate wasting money on shiny gear that doesn’t actually help. Anyone here been through this and can share what works in real life, not sales talk?

Rediscovering this topic and loving the idea of a lighter, power-free mixer like The Steele Mixer. How has it held up over time for those of you who have tried it? I'm curious about its durability long-term and if there are any maintenance tips to keep it running smoothly.

Man, if speed and less back-breaking work are what you're after, check out the Steele Mixer. My crew and I switched a while back, and it's like night and day. It handles quite a bit per batch, and trust me, the one-person operation is a game changer. We don’t miss wasting time on maintenance, and quick cleanup means more time knocking off of work. Money spent feels well worth it.