Teachable

It's probably one of the better choices when it comes to making courses online. First of all, you get a lot of options to integrate with 3rd party software which is great since you don't have to start from scratch in some aspects. Second, it's really easy to start teaching your audience online with Teachable.

You can easily add new courses, record some lessons and launch!

You get great payment options to choose from to give your customers some variety, also, it's easy to setup your page to make your "classroom" look even better.

It does take time to setup everything if you're planning to work on many courses and uploading a lot of material.

While you can get most of it done by the time your free trial is over, it's always great to upgrade from the start to be able to take advantage of the premium features Teachable offers.

One more thing is that, it's a bit pricey compared to other choices however, if you want great quality, it will cost you.

You can change the colour scheme to for your brand.
There is a white label option to ensure all branding is yours and only yours.
You can use your own domain.
Video hosting is done directly on Teachable, so no need to figure out embedding etc from other sites.
You can add quizzes and tests to your online courses.
You can add resources and PDFs for your students.
It's possible to add add-ons for additional income on courses, and also bundle courses together.
They offer many free courses and resources to help the budding online teacher.

There is no middle ground between the starter plan and next plan - it's expensive for the starter plan compared to other course platform options with hardly any of the perks the others offer.
The promise of being able to fully customise your school is negated by the very real fact that you HAVE to be able to 'code' to do so, taking away from the ease of use.
The quizzes available are restricted to multiple choice or true and false - students aren't able to upload assignments and there is also no room for free flow questions.

The course building platform itself is great. Support is decent for the most part, although they don't really engage well with feature requests.

Teachable seems to look at sales as an incidental part of course creation and teaching. Here are a few examples:

1) They don't have a drag-and-drop landing page builder. The templates are really generic and it's hard to get a sleek-looking landing page.
2) No email automation. You can send one-off emails to your students, but that's it.
3) You can't add a lead magnet to collect email addresses. You'll have to pay for Convertkit (which is another $25/month) or another email list provider.
4) There are limited options to customize the checkout. You can't custom code (like Analytics), or so on because the checkout is hosted on sso.teachable.com. And there's no option for a two-step checkout - say goodbye to abandoned cart emails (unless you want to create a complicated integration).
5) Their "one-click-upsell" mechanics are super limited. They previously had this feature, but got rid of it when they upgraded their page builder. They now have an upsell, but the mechanics are clunky. Again - sales and marketing are not at the top of this company's mind.

On top of that, the pricing was expensive. $99/month (the lowest-priced annual plan with no transaction fee) is super high pricing for what you get. You're better off with Kartra (which costs the same as Teachable, but does way more) or Systeme.io (which has crazy-affordable pricing and really engages with users to improve the product)