Local model as such will give you "autocomplete on steroids" but it is not going to run away and implement cross project feature like frontier model in let's say Cursor.
So there is no value in testing quality of answers, but there is value in testing token speed.
You just have to have correct expectations.
Is autocomplete using LLMs really useful? Even with frontier models I found it to be about 50% right, I turned it of and prefer to use IntelliJ built-in, it is way more reliable.
For me local models is all about quality, and how to achieve that - e.g. by providing guardrails that test the job done.