(I've edited my previous post with I believe to be my most average result)Sometimes vote compass is correct, sometimes it's incorrect.
They do have a strong Liberal bias in how they intepret questions. For example they typically conflate climate change with environment, or gun restrictions with addressing gun crime.
Taking away hunting rifles won't reduce handgun shootings in Toronto.
This year they're pretty good, though I'm not sure which party is against housing affordability.
To be fair, political views don't necessarily align with reality, for example pipelines are considered "anti climate change/anti environment", even if the actual impact is reduced emissions, and less environmental damage.
I'd have to check the methodology. I'm pretty sure we don't want such tool to bias the voting decision for those who don't have a strong political opinion and just rely on such tool. I hope that tool is built on such way that it makes sense statistically in order to remove biases.