They last longer but they don't shave as well. Gillette's shit costs way too much, but they shave better because the blades are made of thinner metal. If you make the metal thicker, like Harry's, they last longer but aren't as sharp.
Just go old school and learn to shave with a straight razor. It's not that hard and you can keep the razor as sharp as you like.
And the middle ground is double bladed safety razors. You treat them pretty much like disposable razors when shaving, but they're a lot cheaper and I find give much better results. The blades shape is standardized, so you can buy them from any of a hundred different manufacturers.
They last longer but they don't shave as well. Gillette's shit costs way too much, but they shave better because the blades are made of thinner metal. If you make the metal thicker, like Harry's, they last longer but aren't as sharp.
Just go old school and learn to shave with a straight razor. It's not that hard and you can keep the razor as sharp as you like.
And the middle ground is double bladed safety razors. You treat them pretty much like disposable razors when shaving, but they're a lot cheaper and I find give much better results. The blades shape is standardized, so you can buy them from any of a hundred different manufacturers.