I personally wouldn't trust used hw wallets. Just buy a new one if you're going to store any serious amount of coins in it.
Yes me too, i don't believe with any option for bitcoin wallet. that's why i keep bitcoin at exchange.
Are you trolling? exchanges are not safe, just look at MTGOX and so forth.
OP get a trezor or use the methods for the nano s to verify the integrity of the wallet, dont listen to newbie accounts that are obviously trolling.