orenelbaum

Solid has done some branding around performance but the promotion is shifting to be more balanced, as Solid really isn't about performance. Solid's biggest priority has been to give the best DX for building performant applications that stay maintainable at scale and after years of work on the same project. Solid might seem harder than Svelte or Vue to get started with (although this is arguable IMO) but due to it's simplicity I think that it's much easier to master and understand what actually is going on.

Compare this to Svelte which has the goal of creating the perfect high level abstraction so that you never need to understand how things work and was originally created for smaller one off projects with much smaller complexity and no maintenance burden.

This is another area where Solid has an advantage over React. With React you could use Hyperscript functions so the above JSX would be

React.createElement('div', null, `The count is: {this.state.count}`).

With Solid you get the choice, you could use JSX, Hyperscript functions or template literals like in your example. Solid does recommend using JSX because there are some tradeoffs to using template literals without compilation, but it still maintains almost all of its qualities AFAIK and in the big framework benchmark Solid with template literals is the fastest template literals implementation.

With Solid you don't even have to use any templating languages, you can take care of rendering yourself using the tools that the framework gives you. Solid at its core is more of a capable state management library similar to MobX but designed to be used as the only reactivity engine unlike MobX which is usually used on top of React.

It kinda is, but it's more than just JSX. Solid was basically born out of Knockout and is in many ways a continuation of Knockout, but it has some relatively significant changes and additions to make this approach more viable, especially for large long standing projects. JSX is more of a quality of life thing, you don't even have to use it, Solid's runtime exists completely separately of JSX and can work great without it or even potentially be integrated with other templating languages.

We are not trading some complexity here for some complexity there. We are trading a huge amount of complexity for a framework that is simpler by an order of magnitude. Simplicity is one of the really undeniable benefits of Solid once you gain a decent understanding of the framework. React at times might appear simple on the surface but the overall complexity is pretty huge compared to Solid.