They are very good IMO I have had them for 3 years and they still work great.
I went with them for one reason only: The frame mounts for the Vario bags tuck in and look great when the bags are not on. I do a lot of day rides and the frame mounts blend in so nicely you don't even notice them.
The other advantage is that they are cheap to replace compared to other luggage if you do happen to crash.
2013 Ducati Hypermotard SP, 2011 Husaberg FE570S, 2011 BMW S1000RR, 2010 BMW F800GS
2007 Husqvarna TE610 , 2003 KTM 525 MXC