Tonight I broke down and purchased the brick lane panniers. They are so expensive and don't look extremely functional, yes. However, I was lusting after them for probably five years and had a little cash... I hope they are as I expect or better. (I am now hunting more reviews and thoughts.)

My main bags for a long time were Basil Kavan II, and those are wonderful. They are huge, look great, are leather and cotton, and with creativity they allowed me to bring home a week's groceries. However, they pretty much had to be left on my bike which took up too much living space and sucked for joy riding. Some purple Basil panniers have become my go to lately for this reason, but I still need to remove them too often. Eventually I found myself longing for the elegant and highly priced brick lane again. The rolling up feature is what sold me. Being able to do that and leave them on would be great!

I am unconvinced that they will prove as useful for groceries. Not even close, and I am not certain how well I like the closure method. The magnets and rolling up bit though... :drool:
I made some bags for my bike, because I am a competent seamstress and pattern maker, and I had thought about copying what I liked in the brook lane. Eventually I decided that it would involve just enough effort and material that I think I would prefer to spend/splurge instead. I bought from Amazon and might make use of the return policy. Lately I was shopping various components to "upgrade" my perfectly serviceable and lovely bike, so why not at least spring for something I had my eye on for years? I'm a bit nervous that I won't be thrilled, hence the searching, but I'll update when they arrive for the benefit of others. They sure look beautiful, to me, and will compliment my omafiets nicely... If they are sufficiently functional?