This review was written after I finished v0.55. Since spoilers may affect your experience, I will remain vague and give you just an idea of what to expect.
This is a fun game with a decent premise. The story of someone pursuing a dream against their parents' wishes is a classic and appealing one, especially if done convincingly. I do like how instead of becoming more antagonistic to your father, you can simply choose to remain determined to prove yourself through success. This story has reached what may be a major turning point in the current version, and I am looking forward to how the MC handles these changes.
The (presumably) main interests are all distinctive, though since they are all quite likable, it is not easy to pick favorites. Apart from being obviously attractive in ways that cater to different preferences, their personalities and stories are also slowly fleshed out in the game. Though I must point out that during the first act, the girls may not stand out from the crowd due to the relatively slow pacing in terms of character building and lack of distinctive quirks. This is not a flaw, just something to keep in mind. I also appreciate how MC's obligatory male best friend is not entirely neglected or excluded from the action.
As for the game-play, Become A Rock Star is a visual novel, so you will know what to expect. Your choices will only affect MC's relationships as he will pursue his dream regardless, so the MC can remain single, celibate and still continue his story. (though this may defeat the whole point of playing an visual novel sex game) Since this is a Ren'Py game the controls are quite user-friendly, and almost instinctive to me as I have a preference to Ren'Py. (I never said I would be fair, I'm just an arrogant bastard who likes to babble after all)
All in all, this is a crowd-pleasing visual novel that shows potential. It may not take as many risks as some may hope, but it will very likely be a solid, enjoyable story.