I've been using it since the second dev beta and it's been working great.

If you're seeing that most people are happy with it then it sounds like you're in the minority.

On 26, for me, the baseline is (1) press the siri button on carplay maps (2) speak destination (3) it shows a screen with a map and blue dot showing my destination, and siri says “Sorry, I do not know where you are.”

The version before that, it’d send me to the wrong destination but typing the speech recognizer output verbatim into maps worked.

So, maybe 27 siri is better? (How could it be worse?!?)

There are users, there are rabid fans, and then there are blissful corporation groupies. Apple has a company that severely lacks the first kind – because if it did, it would have either fixed its act or gone into the ground.