Anybody?

Since I first heard this software in a Jacob Collier video, i have been intrigued.

But I hear so little about it anywhere so I'm curious if any of you have/use it.

My ears were extremely pleased with the Yamaha C7 (?) and I'm wondering what others are included in it's package and what the general consensus might be?

Thanks!

Many swear by it.  I'm not a user so can't attest.

Thanks...

I found listening to Collier using it to be stunning and I'm almost ready to buy it for that one piano.... but it is expensive so I'd like to scrutinize it's other benefit's as well...

Since you are an Omnisphere/Triiian user, adding Keyscape is well worth it. The Keyscape library is much more geared towards authentic, real-world instruments. The fact that you can mix and match Omni/Trilian/Keyscape sound sources to make custom patches makes this combination a real powerhouse. There is one additional sound source available that adds Moog samples to the library. If you do any electronica it is useful to add these as well.
 
Regards,
Dan

I found it really disappointing. The C7 is easily the worst of the package. It has super unrealistic release (like, none), there's no string resonance and the midrange totally sucks.

There's a few really good Rhodes sounds in there although Scarbee has an 88 out that with its "Matrix" expansion set is, to me, way better. Everything in KeyScape is completely pimped up, sound wise, as you will probably recognize from Trillian.

Tastes differ but as a pianist I was looking forward to splurging on it and I've been really disappointed.

First time I've heard someone be critical of Keyscape, and I've been very curious about it since it's release. I, too like the Scarbee 88, been using it a lot for quite a while now, for Rhodes sounds, and I also use Pianoteq Steinway, and OrangeTree's Yamaha, which I like a lot, so I'm not sure I'd want to invest 300-400 in this product.

I was cool to the piano at first, but now it's my default go-to piano (example, example). The electric pianos are excellent - I have used them live on stage (before I decided that lugging along a laptop was too much bother) and they were very responsive.
 
Because Keyscape uses the same engine as Omnisphere, you can combine the two for some very pleasant piano + synth pad sounds.
 
So yeh, it's pretty durn good. But I wouldn't recommend it to someone who's not all that into pianos. Me, I'm a piano player in real life, so Keyscape is much-loved here.
 
FWIW, here's the review I did for SoundBytes in May 2017.

Bitflipper is right, as he often is. Read that SoundBytes review, it’s a very good description. I have so many C7 libs and for me the Keyscape C7 is in the same sweet league as the ImpactSoundworks Pearl grand. The electric pianos are in a league of their own. Get these plus the Pianoteq bundle and you’re covered both ways (sampled and modeled). If you want alternatives, go for AAS Lounge Lizard (modeled) and the sampled libraries from GospelMusicians, SonicCouture, Scarbee, or even Air (that cheap but lovely Velvet). You might as well look at the Pianos and Keys from Waves, they’re not bad at all.

FWIW I'm also a full time pianist, but as I said, tastes differ. I'd rate almost any semi-recent piano above the Keyscape C7 but I particularly like the Kronos German Grand and NI The Grandeur of the ones that I own. I've used and enjoyed Pianoteq on occasion but didn't jive with it enough to make it a go-to. Ivory is still on my list but I hate iLok and I'm already carrying two other dongles. Addictive Keys has some cool dark "mood" pianos. I bought the Ravenscroft Kontakt package on a recommendation but don't really like it.

None of them come close to playing an actual grand so I guess ultimately it's whether or not it has the sound you're looking for in your music.

EDIT: also, ridiculously, Keyscape is really heavy on CPU and disk speed, even though it's only playing samples. I have a well maintained i6700 based system with a dedicated SSD for all my samples, with an RME UCX audio interface, and it was still hard to avoid clicks and pops at reasonable latencies (in fact the audio buffer didn't seem to do that much). Perhaps they fixed this with an update, I haven't used it for the last six months or so. Something to take into account at least.

Another lifelong keyboardist here and I have to say that overall Keyscape is a fairly amazing piece of kit.  And while I quite like the C7...it's not radically better than many others I own.  Also, many of the more esoteric instruments in the collection are seldom used.  But still they're great to have in your toolbox if needed.  Of course one of the main reasons I bought it was the fantastic LA Custom Rhodes modeled after a particular LA rental Rhodes from back in the day.  I used to have an extensive pedalboard setup for my 88 suitcase just to get the sound of that rental and now I have it with just a mouse click.  
 
On the downside, as mentioned, it's a beast of a program that puts quite a strain on the CPU and, if you have an older, slower machine, takes seemingly forever to load the patches.  Your mileage may vary.