I've got a skidmarx one, fits well enough, little off center if you're measuring it with a micrometer from the rear tyre.
Only problem I've had with it was when the bike was fully loaded with me, the gf, the topbox, panniers and tent going round Scotland, at some point the shock bottomed out to the point the rear subframe hit the top of the hugger and taken a chunk out of it. It's still whole and everything, but it did transfer a bit of force to the swingarm, taking a small chunk out of the cross bar and taking the paint off (black)
Not sure I'd have noticed the dirty shock or possible stone chips, definately notice the dent in my swingarm
But, other than that pretty extreme example, I've got no problems with it
P.S, I've taken the wheel out with the hugger in place and with the hugger removed, obviously some difference, but quite easy to remove it with the hugger in place