got the equipment now and am absolutely thrilled. Doubled the volume and makes it very stable foam. Works well in the cup. Have so far always worked with 2 Billigschäumern. With a bit of sense and pulse operation at the beginning of the milk remains where it belongs. Referring to the bad reviews I can only say: If it is too strong, you're too weak! :-))
Postscript: Use the device after about 18 months still daily and am very satisfied. Loaded but it is only about every 6 weeks for 24 hours. This maintains the battery and reduces unnecessary power consumption!