Soft sebo brush?
So do we think the Softer brush for Sebos would be suitable for berber? If so i'd go for a Felix it's hands down the best Sebo machine i've used.
If you do go the central route i'd probably stay away from the filterless machines, i just don't like the thought of freely allowing debris into the motor. I'd either go with a bagged unit or an inverted filter system, I know the local shop sells Beam they've had few issues with them. As for the powerhead maybe a wessel Werks softclean or the EBK280 which has pretty soft bristles.