I strikes me as at least as efficient as the SE1, maybe the SE2, but way more comfortable and manageable because of its balance, light weight, and ergonomics. Understand that exposure is adjustable since there are no blade stops. Unlike something like the Schick E2 or the aforementioned SE1/2 I can zip around my head with considerable abandon without fear of bloodletting.
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Sent from my Pixel 2 using Tapatalk