From the demo, it seems towards "buy buy buy", but I'm cheap, I always compare prices, even for repeat items (who knows, another seller might happen to be cheaper now?).
Maybe I'm in the minority?
I asked it to by me concert tickets, it suggested ticket master for 90$ each, I asked it to find cheaper tickets and found something else 70$ each — I found it really convenient.
I asked it to check once a day for the next week and notify me of any price changes
The best selling point is an end-to-end purchase flow that you don't have think about at all, it does the price comparisons for you. However, if you want to use it to just get the list of top candidates and compare and go make the final decision yourself I'm sure it can do that for you too. Either way I see a future where these claw-like agents can fit into everyday use cases.