I bought this to replace another brand shredder I burned up during my end of year file cabinet purge. The main reason for selecting this make and model was its advertised 60 minute sustained shred time and 10 minute cool down with thermal protection feature. Once I work up the energy to shred I don't want to stop just because the machine can't match my enthusiasm. This shredder is awesome!!! It does everything it says it will do, and it is sooooo quiet. I'd give it 6 stars if I could.