I bought it, shame on me, I'm a kind of virtual piano collector.
I wanted to participate to this thread to say: "Be careful... I mean, not everyone will like it. There's no ultimate piano, and imho this one is far away to enter the category if there is one." Btw, the quest for the ultimate piano is pointless, because every acoustic piano sound is different, so how you would compare them, and more than that, the context matters, definitely. Last but not least, it's fully subjective, and this subjectivity is the fruit of your own experience/culture. Mine is coming from a jazz pianist background.
So from my own experience and needs, I was disappointed, because the sound is too thin for my use, and not only in the high. It lacks of body as well. It's too clean, I can't feel the instrument under my fingers, so I can't believe I'm playing piano, and without wanting to be rude with the product, I would say it sounds a bit dead. I should add that I'm not super fan of the Yamaha C7 sound in general, but that's fine in the right context. About VSL version, I will never use it as it is for a (live or recorded) solo performance. When you go beyond the scope of the hype cinematic pianos drowned in a hall reverb (I think most of the virtual pianos are good enough to play in this category, because the requirements are such low), there's not so much products left to deliver an enjoyable intimate dry acoustic solo experience. And when you find some, the marathon is not over, you have to deal with many sample inconsistencies (eq, release...) spread on the keyboard, and many times, find some tricks to make your experience less clinic (adding noises, harmonics, colors...).
To conclude about VSL, it still has bugs with sustain pedal and samples release, I made a report, and I'm sure they'll fix it asap. I would recommend to test it it if you're interested in. I'm pretty sure you can be reimbursed later if you change your mind before the limit date (14 days?). I did it with VSL Synchron Strings. Just be careful about the general enthusiasm, there are definitely lot of alternatives that can give you better time depending on your own background and needs.
A positive note to end this post, I'm using the closed mic as a layer for a bigger piano patch. I like the tone it adds to the final sound. And yeah, it's weird, but you can mix piano samples together to create new sounds, if you didn't try yet, you should definitely give it a try.