A: Dear CluelessClay,
thank you for your question. I don't know TeleportHQ well.
From what I can see on TeleportHQ websites, it seems more a tool like WebFlow: in particular, I think your editors will be able to change margins, paddings, text size etc. using the sidebar menus.
With React Bricks the sidebar controls are just the ones that you define in code, so, if font size for a content block should not be changed by content editors (because it's part of the design system), they will not have the possibility to change it.

Another difference is that they host the website and set limits on bandwidth, so that, if you site has success, you need to pay more.
With React Bricks you host the website yourself wherever you like, while we just host the content data and the images (on a global CDN).