I like the idea or the concept to be honest. It works like a bank right? But, this once has a lock-in period only to force someone to hold for many more years. We know that hodling for a long time is one of the problems of the users because they lack of patience and they got easily tempted to sell when they see the market is doing good but I am only not sure if many people will trust such service.
Why will they entrust their coins to someone else especially on a new project that doesn't have enough reputation? why there is no service for hodling? I think that is because holding a coin is too simple, it does not need any advanced knowledge or complex tools but you just need a wallet.
Finally one person that got what I meant. Trust is not an issue, because it is smart contract, no one is owning it and at the same time anyone can check it. Just check the code, audit the smart contract. It is open source.