I finally got around to trying the Peak Design wallet (non-stand version) I had picked up a few weeks ago. I picked up the charcoal version as a change of pace to the 3 Apple Leather wallets I've gotten over the years.
There's a number of things I really like about this wallet (higher capacity, the pull tab that lifts the cards out), but man - the magnet on this guy is weak. I've tried several of my cases, and compared to the Apple magnets, the Peak Design grip is rather disappointing.
Judging from several of the Amazon reviews, I'm not the only one. The magnet part that runs north/south doesn't want to seem to grip, unless you really mess around with it, leaving the east/west magnet at the top trying to do all the work and usually failing.
Don't know if this one is going to back to Amazon....