I own a Ledger Nano S and i'm quite happy with it. The only thing i was a bit afraid of it was that it came with no anti tampering sticker, but then i realized that the Ledger does NOT need it cos it has an anti tamper software built in which is amazing IMO
https://www.ledger.fr/2015/03/27/how-to-protect-hardware-wallets-against-tampering/
Another limit of the Ledger is that you can't use more than 4 or 5 wallet at the same time, but is not a problem cos you can just install an remove wallets without loosing anythin in it, your private keys are always safe. You buy a peace of mind