I've said this a few times, the terminal+shell is a more than half-century old relic that's 10 years past its expiration date. We need better stabs at innovating power-user workspace management than a new coat of paint on old software.

For what it's worth, it does look rather nice, and it looks as though care has been taken to construct it. Though next to existing solutions with more pedigree, it's hard to argue in its favour.