Maybe it's an uncanny valley thing, but I hate the fake emotion and attitude in this demo. I'd much rather it tried harder to be bland. I want something smart but not warm, and I can't imagine being frustrated by "lack of drama".
Programmers are sometimes accused of wanting to play god and bring the computer to life, usually out of some motive like loneliness. Its kind of ironic I see engineers do better treating computers as the mechanical devices they are, and its regular people who want to anthropomorphize everything.
That's not even AI. Imagine a store sales rep speaking like that. It's inappropriate and off-putting. We expect it to improve but it's another "it'll come" situation.
The good news is, in due time, you can decide exactly how you want your agent to talk to you. Want a snarky Italian or a pompous Englishman. It’s your choice.