"Extant" can go in either the nonsensical direction of shows like "Lost" and "Under The Dome", or it can deliver. It is too early to say which.
The show takes place in a future similar to that from "Almost Human".
It also appears to be influenced by Stanislav Lem's "Solaris".
The episode sparked my interest in just the right ways. It was competently written, acted, filmed, scored. It didn't go for bombast or cheap scares, but rather for a subdued sense of unease.
It really could go either way from here, and it is impossible to tell just yet, because shows built on an overarching mystery often de-evolve into ramblings of a lunatic as the writers thrash inside the web of inconsistencies they spun from one episode to the next.
But the pilot gives me hope. This review will be updated when more episodes come out.