Yea I left the game twice, both times thinking I'll never go back. The clue finding can get pretty tedious (I like to look for *some* of the clues, but if some are missing it gets tiring to look for the rest) and I still think the interrogation system is pretty terrible.
And what I hate most is there's always one and only one right way to do anything and the game gives worse rating if you try to do something in a way that may seem more logical. Such as there was a murder case where I had the option to either try to identify the victim by going to the cleaners (a super long shot if you ask me), or by checking 3 houses which submitted missing person reports. Not only does the latter seem more reasonable, the outcome is also funnier. Yet I got a worse rating because of that.
Not to mention those cases which turn out to have been solved wrong anyway, and the whole interrogation system which always have one and only one (again) way to solve them. Do anything else and the game goes TZZZZZZ WRONG which is super discouraging to me.
So what I ended up doing is just have a walkthrough with me at all times; after finding a few clues by myself, I just checked where the rest of them are and I never bothered with interrogations myself, I just went by the walkthrough. That allowed me to skip the bullsh*t parts and just enjoy the flow of the story. Unless someone enjoys the adventure game tropes, everything is much better that way.
Also, trying to figure things myself can lead to missing out on the newspapers collectibles, which are essential to understanding the story. So I skipped most of the game and ended up loving the story which made the whole experience worthwhile.