It's amazing to be able to try a bunch of ideas with very minimal cost. That being said, AI code assistants don't have eyeballs and they often make things that don't look very good. Craft, polish and judgement still matter.

I find they can make some things look objectively "good", but they just look generic and it feels very easy to spot a site that was made without the vision, polish and judgement.

You can get LLMs to create some truly unique sites, but it takes a lot more work than a few prompts.