Do you have an accent? Most complaints about poor recognition on google now comes from people with accents, it seems to struggle with what are typically considered heavy accents (some very localized accents or English as a second language speakers)

If not, try asking it any questions you can think of. You'll be surprised at how good it is, not counting "population of x" or "whats the weather?" type questions. Some examples: How long do you cook chicken for on the grill? When did the current pope become pope? Why do some people fill their tires with nitrogen? Do LED bulbs contain mercury? What's the loudest sound ever heard on Earth? Is it dangerous to drink distilled water? Why do canon printers have 2 black ink cartridges?

I use it a ton and it reads back an answer about 70% of time. Sometimes it misses easy ones and sometimes it nails really challenging ones. Sometimes it will work when your question is phrased one way but not another. Usually it prefers direct phrasing rather than vaguer phrasing (i.e. how long do you cook chicken on the grill vs how do you cook chicken on the grill). Overall though it is ridiculously powerful compared to other assistants.