Currently you split your spaces to be able to invite other users to that space. This makes the personal entity redundant since you have one in each space. it is also a pain switching between spaces.
Instead, I propose having one "All-in-one" or Hub Space where you can view and control everything you have access to.
Instead, of having to invite members per space. you would invite them per entity. you can then manage their access control to any combination of read, write and/or execute. (view only, modify transactions, and execute transfers.
You can also add multiple personal entities to be able to separate your household and personal expenses.
This would be game changing!!