It is very important for users that wallet will be simple in use, because not all the users are know cryptopcurrency well. Wallet must be simple to use.
Now there is a big competitions among the multi currency wallets. So to be competitive among the other wallets it is necessary to have more advantages.
That is why to be more competitive it is not enough to have only wallet. It is necessary to have a developed ecosystem and a big community.
I think that it is very important to have a project that is in demand. To be in demant it is necessary to have a big ecosystem and a lot of users.