I think they, as a whole, remind me of kagrra. As you said, their songs give the same feeling as kagrra's.
But so far I like them better than Kagrra =x
Ageha's voice is prettier than Isshi's voice
I'm curious, which one you consider Kagrraish then? 'cause maybe not all of their songs, but definitely most, give me the same feeling like those of Kagrra,...which, in my opinion, is a good thing x]