I bought this for kurzweil Forte 7 which fits like it was made for it! There is removable inner pads that let you make the shape right for you. with Kurzweil there is also rooms for pedals and cables.
The locking mechanism I find handy but after many years of use sometimes it get a little stuck. Probably nothing to be worried about.
Unfortunately it got a little crack from somewhere during gigging. I keep good care of my stuff and handle them with care, so it's was not as durable I would hope. I can still use it with the crack, but I would say that for example "thon case" or something else would be even more sturdy, but again more heavy. However, it is still very well made and I can recommend it. Just be aware that it's not "indestructible". Wheels are handy.