Perhaps Not that good...
The new Bosch does have a bit of a noise problem – not the typical noise of the motor humming under full load, but the coarse-toothed clunk of the chainring freewheel that produces a metallic sound when it engages and sounds almost like a clattering chain on rough...
EMAX: our newest version of iOS smartphone app eMaxMobileApp which is capable to modify also the latest motor firmware 4.7.0 is ready for download in Apple´s AppStore.