You can get objective criteria. As someone who lived there until literally months ago for much of my adulthood, there are definitely serious issues for a tech/startup city.

The education system isn't highly rated overall so you'll have to choose carefully if you have kids. Similar if you're depending on a pool of local tech talent.

There was some social media stuff about it being a tech city but that was based on the mayor's Twitter exchange with Elon and then some sort of sales guy in the mayor's office and their hype.

For all the social media blips it generated, no major tech companies have moved any offices there since and many of the local companies are looking to move either upstate to areas like Orlando (or even out of state) to get away from of the Miami issues.

Take objective results like cost of living, rent, education quality (if you have kids it's one measure and hiring is another of course), traffic, crime, average income, etc. Maybe even go and visit for a couple months in the summer since people from up north would sometimes complain about our heat and humidity lol.