After entering one year and serving as a steward that same year, I won't waste my time/money/beer again. Here's my experience:
I had two entries: a blonde ale using the centennial blonde recipe and a NEIPA.
The blonde came out exceptionally well and my non-craft beer drinking friends loved it.
The feedback? "Overly bitter and hoppy. Not the approachable, easy drinking beer for the style." This on a beer with a theoretical IBU of 22. Score of 27.
The NEIPA was a diacetyl bomb. I dumped the keg after bottling, but sent it in because I didn't know if it would hurt my chances in the future to sign up for an entry and not submit anything. I expected a courtesy 13 or, maybe up to a 20 if they were nice. Certified judges in my homebrew club picked up the diacetyl immediately and agreed it was pronounced. Yet not a single comment about that and they gave it a score of 34.
So either they mixed my bottles with someone else's or the judges were clueless. Comments and scores did not match my beers in any way, shape or form.
Now...as a steward. The judges were expected to judge far too many beers. I had judges sigh and ask how many more to be judged when I brought the next beer, then groan when I said 6 more. They were burnt out and had blown palates, IMO.
It would be cool to score well, medal, get to the next round, etc., but I have zero confidence that the quality of my beer is deciding factor in that, so why bother?
My only other entry was a local competition where my NEIPA scored a 43 and won best of show.