I am new to this forum, and have recently bought a PX 5S. I thought I would share some of my experiences. First off, I'd like to thank Casio UK for their support. They arranged for me to have access to a PX 5S so that I could make up my mind. Quite a few things drew to this instrument, primarily: - The keyboard action - The weight - The width (get in car) - The ability to run on battery (garden use) - The piano sounds - The sound engine flexibility/layering etc. - The simple memory stick recording/playback feature - The price - The support via forums, e.g. Q+A, new sounds The things that I don't like so much, but which did *not* stop me buying the instrument are: - The complexity of editing, getting drawn into time wasting - The knobs meaning different things at different times with no visual feedback (although I understand completely what Casio is trying to achieve here) - The quality of the plastic knobs and sliders (worry about them breaking/snapping) - Worry about the underlying switches (longevity/reliability) - The white plastic case potentially getting dirty quickly None of this stopped me buying the PX 5S however, and most of it may end up being silly unnecessary worries. The reason I put aside all such worries and bought a PX 5S is this: The PX 5S is very expressive! I don't know whether this is due to the action or engine or both, but it just is. When I play pianos or e-pianos on the instrument I can be very subtle - moving from ultra quiet/stillness to very expansive hard-edged music in an instant. It's hard to describe. Many of the sounds, including those in this forum, are truly wonderful. Some are stunning. There are a lot of less good sounds of course, but they are generally in areas I don't use, e.g. brass, and I will quickly replace them with ones I use. The instrument seems oriented to piano, e-piano and layering in pads. In these regards it excels. But even the sounds that come as standard can be improved with a little tweaking, I find. In fact, the IMPRESSION I get is that Casio could do well to invest more in sound production for this instrument. My GUESS is that the engine is capable of much much more. The efforts of Mike and team on this forum are wonderful of course, and most welcome. But I also believe the development of more Pro Sounds, perhaps in themed packs, would increase the appeal and sales of the instrument still further, especially when combined with the efforts of the community members. I have other impressions to share, but I'll leave it there for the time being.