Toots look quite nice as well, however there aren't multiple panes for federated, local, following, etc. like there are for Mastodon. I have seen that Pleroma is fully compatible with any Mastodon client and, according to what I read, that even includes the Mastodon WebUI which is a big plus; I love versatility and options.
Formatting works well in Pleroma but not at all in Mastodon. The first image is from the former and the second from the latter.
Pleroma also does HTML formatting but I'll leave that to you to test 😉
Fosstodon is a Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.