Having played version 1.0 and this update, i have to say the game is MUCH more enjoyable now.
Most levels are much friendlier now (specially yoshi levels), though some levels (like "The Ford Focus" and "Silver Catastrophe") are still very difficult/tight. (lets be real here.. flying with yoshi through 2 tile gaps with munchers everywhere was janky as fk.. gladly thats not an issue anymore)
Its a very well made hack, and anyone will clearly see theres some real effort put on making this.
Though, I have to say i feel a bit unconfortable with some music and palette choices here (sometimes VERY contrasting, and the prevalence of orange/brown colors throughout the hack). I also think the excess of ornamental stuff can be sometimes detrimental to a high performance gaming. But this is very personal and some people might really love it.
Would still probably only recommend this to more experienced players / kaizo aficionados. Beginners would probably get frustrated very quickly.