decent EXS pianos?

Do You need it to be something for the EXS?
Otherwise I like Pianoteq, and their new Pianoteq Play version is great value at €99.

Pianoteq Play

Download the demo and see if You like it...
I already have pianoteq, it's ok but still a synethsized piano, I was looking for something more gritty and realistic. The imperfect samples fazioli piano fantastic, its on a different level IMO.
Again, this is not in EXS 24 format. But I love this acoustic piano software instrument:

It uses a combination of samples, modeling, and synthesis. It is very light on the CPU and doesn't take a ton of hard drive space. It sounds great in the mix, and feels great to play on - who could ask for more from a piano sample!