I remember looking at many of their bags in a big shop a few years ago and was not impressed with the quality of materials, design and build
They are different but that doesn’t mean bad. Quality of materials I would strongly disagree with, it’s good quality but again different to synthetic material.
I have a pair of front / universal panniers, bought second hand. Well over 20years old. Really good size used commuting, on front touring with partner, on back off road though Scotland with nearly a week’s worth of food. I do secure the panniers off road with bungees as I can’t be bothered to replace the mountings with updated versions.
Similarly have a weirdo long flap that is made for small bikes so with a wheel arch. Aided commuting for years.
In practical terms they work very well, Good opening, good buckles, I haven’t reproofed and it takes a lot for water to get though but still chuck clothing etc in lightweight dry bags / plastic bags. I prefer this personally for separation of goods and means the dry bags are clean.
I often think the sandlebag would work well as a bar bag too.