I only recently bought this album after reading a lot of the press about this band. Heck, any band with their dad in it has to be worth a listen (I'm a 50 year old dad myself that still plays at being in bands....). All the talk of being "prog" is really weird, because the MJs sound very unlike much prog I have heard. The only track that has vague hints of King Crimson is Zootime, apart from that the closest references I can come up with are XTC meets Syd Barrett-era Floyd. Eclectic, eccentric, whimsical and very English in just the way that XTC were. They also share much of the layered and angular guitar work that typifies XTC's later work (I'm listening to "Love On A Farmboy's Wages" as I type this and it's quite reminiscent of much of the feel of this album).
This album is full of quirky, loveable and different songs, with some lovely layered harmonies. Stand out tracks for me are "You Can't Fool Me Dennis" (irresistible from the first few notes, truly a modern Arnold Layne as others have said), "Purple Prose" (great guitar work, I completely disagree with the reviewer that said it wasn't memorable), "The Boy Who Ran Away" (a very non-traditional approach to song structure that works well), "Horse Drawn Cart" (beautiful harmonies and a whimsical approach worthy of XTC) and "Little Bag Of Hair" (a real grower that has heartfelt poignancy in the lyrics).
Good tracks are "Zootime" (which is a prog-esque mainly instrumental that is a grower) and "Diamonds in the Dark". The let downs for me which lose it a star are "Alas Agnes", which tries so hard to be quirky and different that it fails on all levels (I bet they started with the title and tried to write the song around it...), "Soluble In Air" (unoffensive filler) and "Making Dens" ( meanders too much and doesn't really get anywhere). But overall a really enjoyable album that shows tremendous promise. These guys sound like they are having fun, and that matters. I recommend you buy it and watch what the MJs do in future.