The photos were such a great way to establish setting, and the lighting/sound effects were excellent. Engaging performances and fascinating ideas.
What I didn't like
I was left with some questions at the end, and while some of those I think were intentional, some plot ideas felt unresolved. If this play is re-mounted (and I think it should be), some development of the ideas surrounding the mechanics and specifics of time travel and the future world could be fleshed out (while avoiding the temptation to over-explain).
My overall impression
An ambitious and passionate sci-fi love story, that embraces the joy of life while we barrel towards destruction.