All the implications around Spider-Man's fate here were infinitely interesting and creepy. THIS makes me appreciate the original Symbiote origin better--I usually prefer (and still do, this just makes me appreciate it better) the later revisions, where it's a more simple accidental drop-off on Earth mixing with Astronaut Jameson's exploits, or a result of genetic engineering from Earth.
Doom Jr. is rendered disturbingly hot.
Ditto that it would've been cool if this got the Spider-Girl treatment.
And I do just really enjoy the concept of them actually being stuck on another world that long, settling down, and growing to get along with former foes.