Me and my girlfriend just played this for a while and had a blast. I think the keyboard should be smaller for sure, maybe even moved in the area of "dead space" to the right of the game. As of now, the keyboard hides some of the game elements which feels "cheap" and is just overall intrusive when trying to play. Overall though, I genuinely like the feel of it. Felt pretty authentic and the art is really nice. I will say, another thing I noticed is that the music doesn't loop properly.
Other than that, I think it's solid. Oh, and more interesting ways of dealing damage or healing, maybe like some poison or like some buffs or debuffs of some kind. After playing for about an hour or so, I realized that I wasn't even paying attention to the rouge elements of the game because I was just healing and shielding everything.