I like how it does a good job of taking me to the shows I want, but there are a number of bugs that keep this from being a great app.
First, it takes me into an app like Plex and the show starts right up. However, there a more apps where, like Paramount, where it just takes you into JustWatch then you have to navigate to the show or the episode.
Second, I have to back out to this app and mark that I have seen the show, it doesn't do it automatically.
Third, and the most annoying of all, is when I do a search for a show or movie, or just browse through its suggestions, it returns a lot of hits for which I don't have JustWatch , or (worse yet) hits that no one has. This wastes a lot of time, more than if I go into an app and do the search there. this app needs to either not return hits for shows that I have no access to, or highlight the show so that I don't waste time diving in, only to find out that I can't watch it.
Finally, support doesn't exist. I have asked numerous questions only to either get no response, or to get a response weeks later (problem with late responses is that they don't repeat the question, which after several weeks I may no longer remember what the exact problem was).
Good app, but not great. Has a long way to go before I would seriously consider paying for the service. Yes, there is a paid service, but JustWatch doesn't tell you what you are paying for, just "unlock more features and filters".