- Extremely quiet
 - Very low power consumption
 - Good handling
 
- Too weak on hard floors
 - A little heavy
 
With the Miele Guard L1 Silence, the name says it all: It is barely audible on carpeted floors - you have to listen carefully to hear any noise at all. It also remains very quiet on hard floors. Another positive aspect is the extremely low power consumption: it is only around 380 watts on carpets and rises to a maximum of 565 watts on hard floors...