'Crater' works, I enjoyed it.
It's nothing out of this world (...), though what Kyle Patrick Alvarez & Co. managed to create here does the job, in my eyes anyway. A decent plot is held together well by good acting, solid music and serviceable effects. There are naturally some issues, most notably the arguments between the characters are a bit forced/overly dramatic. Still, it comes together nicely and I found the ending to be rather sweet.
A shame that Disney quickly removed this from their + service, seemingly through no fault of the film itself - it merits more eyes on it.