Had one in my 650gs twin, use to work for metal mule as well!
Only fits one full face lid if you go for the 32 litre, and no lid if you go for the 22. The attachment system is a little awkward to get on and off.
Goo points, no rattle when in the bike as it's rubber mounted. Very robust and will take a lot of use. I did swap for a givi top box as it can take two lids!
Any information let me know!