I think if Casio launched the mz x500 under a different name with better keys it would be a huge success. I personally liked it a lot but the keys on it were terrible. Personally I don’t care about the brand name as long as it sound and play good. I had a Medeli a800 once and the keys were very good. Actually that was the only thing I liked about that keyboard. But we are about 8 years further so I will give Medeli another chance with the AKX10. If I don’t like it I can always send it back