You can find loads of Discourse powered websites here, some with heavy customisation, which is fairly straight forward to do with Discourse, there are a plethora of plugins and themes also the support you receive with Discourse is second to none. It has a fantastic community who support each other.
My personal experience with Discourse has been amazing, it tried me a few times (mostly when installing, never used SSH commands before) but it taught me a lot and I’ve got our community to where I wanted it to be, although I always seem to find something new to play with 
Our members have commented that Discourse is an easy to use platform for them and discussions flow very well, the topic content is nicely laid out and the topic information is easily accessible to all.
A good example of this in our community is The Mixologist group, a group that members are free to join / leave, coupled with the Mixologists Only category, where they can discuss openly on all aspects of mixing away from distractions