Have the machine (or the model 217, probably the predecessor) for years, use them for his thinning hair and for 3Tagebart, and am perfectly happy with it. The selection criterion was the ability to adjust from 1mm hair length and - alternatively - to shave without attachment.
The truth is that with longer hair, there could be problems with the dammed section. But who it does not need him: Voilà. Robust, strong, durable. Not a Gelumpe as many device that I had before.