Just tried it for a few minutes with all extensions enabled and it failed at almost every task I proposed.

How many emails are in my gmail? (Completely incapable of answering this, didn't even try, just listed my last ~5 emails)

Based on my gmail account, how many flights have I booked in the last two years? (Also completely incapable, and didn't try, and again listed those same last ~5 emails)

When is the cheapest one way flight from NYC to Bali over the next six months? (Was for some weird reason only capable of returning round trip flights, but it did at least give me a plausible date and list of flights)

I'm probably using it wrong, but not a super "wow" first impression.