Memory for Ledger Nano S is very small with around 144kb, but even bigger problem is that size of apps for coins is growing all the time and memory stays the same.
It seems that their latest firmware has also increased in size. I read a bunch of old reports on Reddit that they had 156 to 160 kb of free storage for the apps.
Nano S is made from cheap plastic that gets broken easily if you hold it stronger when removing USB cable.
In addition to that, there's one user who's saying he/she got a crack when it wasn't in use:
Since then, I have plugged it into my pc maybe 5 times, and I am an extremely careful person. Today I saw that a crack has developed in its plastic case. I don't know how this is even possible (last time I used it it was ok), but it seems to me the crack has appeared in a stress concentration location (from inner corner to outer corner), and ledger's materials have never been its strongest point (just take a look at the cheap usb cable).
Ledger has one of the worst support I ever saw, that is very slow and they probably have small stuff so there is really no fix for this, except if they hire more people.
They're also a bunch of liars
[e.g. here's one case] who love to give false hopes.
considering all I mentioned above I don't think it's worth the money.
I totally agree
[it's a shame, they could've easily fixed the first half of issues from your list, but for some reason, they've done nothing so far].