Can i trust on etherium project
I want to hold it for long term 5-10 years
Can i use hardware wallet (ledger or trezor)?
For such a period of investment, I would choose more promising coins or tokens. I think bitcoin in 5-10 years will become very expensive, and UTN tokens will grow hundreds of times. Therefore, I would not choose Ethereum for such a long storage. Hardware wallets will cope with the task of storage for so many years.