I tried two fairly basic searches and both had pretty fundamental flaws that make it very hard to consider using OM as a main navigation app.
First: it doesn’t seem to be able to use common informal names for places. If I search “Maccas” on GM, it correctly shows a number of McDonald’s restaurants, as well as Maccas competitors like Hungry Jacks. In OM I get a few places literally named “Macca’s”, followed by a bunch of much more tenuous results. No actual Maccas shows up.
Second, and probably more serious: it doesn’t tell me where something is. I typed in my street name, and understandably a number of results with that name came up. It tells me the city and state they’re in, but doesn’t get more fine-grained than that. With multiple of the same street in a given LGA, it is basically impossible to search by street address if the search result doesn’t narrow it down to suburb. This seems like an incredibly small fix to make, but also a mind boggling error to not already have.
At least 50% of your issues is that OM didn’t know slang.
Gtfo