Time tested: Six months/1500 miles
What’s good? This pack has its own bungee straps and Velcro attachments so it’s easy to get things in place. The size suits a day trip or a weekend break for one and it’s waterproof and unobtrusive. It sits neatly on the pillion seat and did not move around after I had fixed it in place with the built-in straps.
What’s not? There are almost too many straps to get in place and you end up tucking some away that aren’t in use.