I think this is a very good movie, but that comment in itself is worthless. So, 2 more opinions: the sexbot thing is just a pretext to hand out human rapport assertions. And even more in my opinion, voluntary missing the point on the last one.

Roughly summarized, the story is about a guy a little lost in is life, who discovers intelligent (but compliant, no ai evolving to freedom here) sexbots. More than sexbots, their like programmable companions - here I already recognise a critic of today's internet and the social network: with these bits, you are pleased and prisonnier of your own world, they're a mirror of yourself. Then comes assertion about the universality of love, and a shoutout to free oneselves from others' judgments, or tradition, or expectation from spouse/close one's etc.
Finally the last point with spoilers: [spoiler] the film conclude with the couple at peace again, each with their sexbots to satisfy their self-appreciation needs, while leaving room, if not the main place, to their spouse, their love, only one actually loved. The point being able to love the spouse with no constraints, no obligations, eg love while redirecting excesses (examples given are ranting for hours with a enthusiastic debate partner, ofc, sex fantasies, chores) to the bot(s).
I'm saying the point of human relation is purposefully missed here for several reasons. 1st, the movie is mainly criticism of the self-idea of love each person has. It's nothing to do with bits, it's about people. So the cannot be 'get a bot' that doesn't exist in our society. However, stating that calls the attention of the spectator to the fact that in a couple each individual has needs and aspirations/potential. And understanding that allows more understanding, more compliance to satisfy the needs of the companion.
Sorry for length :see_no_evil:[/spoiler]

To be more concise (finally!), it's an ai-love story wrap around the concept of "be there for each other".