The final summary paragraph of the article posted by rob:
Redeemer offers, in places, delightfully energetic melody surges straight from the heart and the retroish, unique SID-sounds perfectly support them. If only the moments of averageness would be absent and the vocals easier on the ears, this could well be the perfect metal album. Nearest to perfection is the most diverse song of the album, Oki Kumas Adventure, which shows what Machinae Supremacy can do when given free reins.
In general, the reviewer gives pros for MaSu on the SID-sounds and hopes for more of them in the future, giving Nightwish as a example where the uniqueness (symphony orchestra in this case) is "bravely put to the fore". MaSu's riffs are also given praise. He gives critique for robert's vocals ("At their best, the signer Robert Stjärnström's vocals sound great, but for the most part the creaky vocals make you grind your teeth") and uneven tracks.
(Just to make sure, personally I think Robert's vocals just take some time to get used to, and as the reviewer later concedes, the non-traditional vocals fit MaSu's non-traditional music).