I just listened to all the songs.. Cold inside and Shade were okay but mainly because of Mariusz's vocals. I think the songs are pretty average, I might listen to those songs again and I will let you know if they grow on me . I presume most of the tracks are instrumental? I couldn't find anything about a vocalist aside from some guest vocals from Mariusz, he has a great voice.
I think theyre not so bad... but there are better Polish prog bands such as Riverside, as you mentioned.
Love the band... I' try to upload more tabs asap