Not quite sure if they actually own the rights to stream all that content, although they probably don't since some of th these series are supposed to be exclusive to some platforms, like Kipo for Netflix.
There are some popping ads so don't click anything when the page has just finished loading (basics of any nottotallylegitstreamingsite) but not that many, close them and any page that pops up and you should be fine.
Little note here, if you can't pay for streaming services you might want to support the series creators via other meanings like sharing their work, this really helps them.
I have watched a lot of shows on here and it's pretty reliable. The only issue is the large amount of pop-up ads that might lead to malware. I recommend closing any tabs that pop up and to be careful where you click.