Is the WordPress Business Platform of high quality? Hosting?

Hi Michelle, I assume you're referring to the Business Plan on WordPress.com, one of the five levels of hosting plans they offer? Yes, that's an excellent platform for hosting a WordPress-powered site... provided you want to use their proprietary version of WordPress, rather than the version of WordPress you'll find on literally every other WordPress hosting company in the world. This video, part of our WordPress 101 series, highlights the differences between the two versions of WordPress: https://vimeo.com/81686205 WordPress.com offers a completely different version of WordPress than that of the open source project at WordPress.org. It's a confusing distinction, and one that routinely sparks frustration by members of the WordPress community. To summarize, WordPress.com is a hosting company. And they’ve created a completely unique administration panel that looks nothing like the ‘self-hosted’ WordPress software used everywhere else — including in our tutorial videos. So, if you’re using WordPress.com, the dashboard and administration area will look completely different from the core WordPress software. That caveat aside, they do offer many other unique features that aren't available anywhere else. And you'll find that the performance of their hosting is on par with that of other Managed WordPress hosting companies. Hope this helps!