Yeah, by my opinion, this project is one of the best ones from Russian Devs (Usually, if there are Russians in the team, I miss the project. But not in this case).
Last Will contract - is very important for every investor/holder: as for me, I want all my cryptocurrencies will be transferred to my family after my death.
I also think so. These guys are professionals and I really trust them. They also have a very important smart contract named Lost key contract which redirect your crypto to the backup wallet if you'll lose your access or private key. Remember how many people lost their keys and they will never use their cryptocurrency! This contract is a solution and this idea is very good