Few things are as subjective as one's likes for a piano sound.
 
If I remember correctly, the Hammersmith is a Steinway, and if that is your bag then go for it. I have the Ivory II American D, which is decent, but its a Steinway and that's not my go-to choice. Solo is nice but in my opinion Yamahas fit better into recording situations, because of their bell-like clarity.  Did you say if you were using this for solo work, or ensemble?
 
If you like the Yamaha side of things, I'd highly recommend a look at Imperial Soundworks "The Pearl" . . .
 
 
best of luck!
cheers,
-Tom
 

Or ProductionVoices Grand Gold.

Until recently, I would have recommended Ivory II. But Impact Soundworks "The Pearl" and Production Voices' pianos are simply excellent. Plus, with the multiple mic options available, you can fit them into any mix. Kontakt 5 required...though how anyone could get along without Kontakt is beyond me.
 
Regards,
Dan

I have several piano vst. My go to is pianoteq5.

Right on, no samples but lots of feel.

Love orangetree samples Evolution Rosewood Grand, a Yamaha C7 sample.  Also have Pianoteq 5, and a couple of others (recently got Sampletekk's Black Grand, but not sure how I feel about it yet.). 
I've also read good things about others, so YMMV, it's all about your personal preferences. And I was a Steinway salesman for a couple of years in the 90's, and loved them, but right now Orange Tree is my current fave, many different presets, and a ton of realism. You probably can't go wrong with any of them, IMO.

Check out the new Hans Zimmer piano at Spitfire... you'll never give another thought to that question...you'll wish you hadn't acquired whatever else you spent your money on... a year and a half went into it's making...as Paul notes, more time and effort went into creating this single masterpiece than spitfire has spent on ANY of their libraries, including Albion ONE... and that's saying something!
Link to THE thread
Teaser, from HZ himself: 
https://youtu.be/ePNSK33JTvs
If you just want to get right to it, Paul's walkthru... you'll understand at that point... most have...
https://www.youtube.com/watch?v=tN9vRJAJA68

And a bit less expensive but with lots of character: Piano in Blue from CineSamples.

I have left my old favorites and the new list, depending on material:
Hammersmith pro from Sonicouture
Pianoteq 5 Bluthner
Ik Miroslav 2 Grand
 
I have replaced my practice piano from Addictive Keys grand with ToonTracks EZKeys Studio grand.

Not sure about the quality of these, but some might like the pianos from Sampletekk just as another option.
 
Edit: That Hammersmith does sound pretty good.