LISA The First is by far the hardest sell of the three LISA games. Even for those who actually played the other two, but especially for those who haven't touched either. "Hey, man- You should definitely try this walking simulator that puts you in the shoes of a father-daughter rape victim trying to escape the trauma of said rape only to realize her mother's face has been overwritten by her dad's. It's really good, dude."
I also suspect that if played first, it would then sour The Painful and The Joyful in a way that those games might not be able to redeem themselves from. The black comedy in The First works a little worse (maybe better?) than in its sequels by feeling more innocuous and coincidental rather than as mild breaks from a downtrodden story. Things like the middle finger tower come off as much more random and pointless than funny here, where near everything else you come across is a nail in a coffin reminder of rape. It's one of the reasons the game is also hard to review- this juxtaposition of quality and intent.
Sure, they could have made the game much better looking- but do you really want a clearer picture of the things depicted here? Sure, the game could be a lot easier and less tedious with it's spider-mazes, but should a telling of trauma be a cake-walk? SURE, the music could do more than FL Studio presets, but would those haunting, midi-ass melodies stick to your mind like the semen on Shinji's hands? I'm not so sure. But LISA certainly SHOULD be praised regardless. Whether it is despite its flaws or because of them, it's an effective and provocative dry-horror prequel to the LISA series.

All that said, if you have experienced SA of any kind probably steer clear of this one.