MenZ' games are loaded with surprising gameplay depth. This one isn't any different. I've only played as a fighter and a mage, but both feel different due to the mage's attack relying on holding down the mouse, which forces you to figure out when you've got the best window to attack and get mana back. The mana steal spell takes mana, too, so it's not a simple 'cast till drained, refill" feel.
As a Female Enemy Enthusiast himself, MenZ knows what's up, so the designs and animations are What You're Looking For. The mix of enemies who also do sex attacks in with the ones you only do sex attacks to feels good. There's a bit of a back and forth that usually doesn't happen in this exact sort of game. That's usually reserved for the BF games rather than the action games.
Virgin Invader and Atelier were very good. I'm actually upset sometimes when I think about how impressive Virgin Invader was and how it didn't kickstart a genre like it should've.