It's always interesting to read all the different opinions. I like this album, even though I'm not exactly a huge fan of the production on it...I don't know,it's very 'produced',and a bit sort of 'boomy' or something. Someone else here mentioned the same things.
It's hard to say which are my favourites...probably 'Masterpiece' for it's heavy guitar riffs with a nice melody, same for 'Saishuuheiki, Kimi', Haruna's song,'NEON TOWN ESCAPE', is cool,at least it's actually quite different, Tomomi's song, 'Laundry Laundry', has her cute voice plus it's got a nice melody [I think she must like Reggae,there's often a bit of that influence in her more recent songs,not that she's actually written many for a few years], 'Tsuki' is a pretty nice ballad, the other songs are all not bad.
I suppose this will probably be an unpopular opinion but to be honest I think they've actually been doing themselves a LITTLE BIT of a disservice by relying too much on Mami to write pretty much all the music the last couple of years. The best thing about this album for me is the fact that both Haruna and Tomomi wrote one song each. But I personally think that it wouldn't hurt to actually go with a few collaborations with pro songwriters,like they used to [at least there are a few here that are arranged by some other guys...that's a start] The songs were just 'better' up to and including Yellow...in my OPINION!
One thing that I don't get is what's happened to Haruna's voice...I know people are talking about 'Autotune' a lot...whatever,there's nothing wrong with a few vocal 'effects' as we used to call them
But it's the actual tone of her voice that's changed too,at least on the recordings...[I don't remember her voice sounding like that when I saw them a few times in Japan in 2017-18, in all the old songs she sounded pretty much the same as before as far as I can remember].
She even talked about this in interviews,that she's the only vocalist whose voice actually gets higher as she gets older
But her voice has also somehow lost a bit of it's individuality I think...which might well have something to do with those vocal effects I suppose.