I really love Mubi so far. It’s a great combination of well-curated choices and limitation. The films disappear after 30 days so there is a great incentive to actually watch the ones you want to see. It solves the aspirational viewing problem of a lot of streaming media: “Oh, I want to see that film (or I feel like I should see that) so I’ll bookmark it but then in the end I never end up watching it.”
They are raising their prices to $8/month soon, but still totally worth it.