I have a x4 and again like many have said I have never been very impressed with its cleaning ability, Now the G1 with its manual height adjustment does a much better job, The problem is that the electronic height adjustment is constantly fiddling and never gets close enough to properly clean,
I dont like the short hose but do love the wand.
Again as said above Short of a Royal not much will last as long in cleaning ladys hands.
I co own a cleaning company and we have a few G1's and some x4's. I always disconnect the auto height on the x4's and set the height myself and leave it their. I love their ease of maintenance, brushes change in a instant and so does the cord handle assy , I keep some spare and fix the cord on the broken ones but when we get the call a machines cord is broken its so simple to fix, less down time.
I will say that the thing I like the most about them is the lack of complaints from customers, These are very quiet vacuums. If it were us up to me all the staff would be using Royals, I love them their power their durability and how purposeful they look on sight but that said I have head helicopters that are quieter.
In the cleaning business with offices your biggest complaint is noisy vacuums The sebo never gets complaints,
To give you an idea of the quality I have two sebo 360's They are 30 years old now and still runn every day, One just got a new motor , Its first new motor and that was because the Com on the armiture had worn away from all the use, I always just changed the carbon brushes but finally 30 years on a new motor was needed .