I'm more accustomed to upright pianos probably because the touch is lighter than Baby grands. I rarely play on grand pianos probably because my school does not have one, even though it can afford more than a few. However every now and then in exams I play on grands. My sister usually practices on a grand piano at school. I think their grand pianos are c5, I think.
I played a Steinway Grand when I was a part time student at a college - it was absolutely amazing - I hated leaving it! In those days I had a Welmar upright at home - which was very loud! I never have played a Yamaha grand sadly - who knows, I will buy one if I win the lottery!
I am so impressed with some recent Chris Venables informative posts - that I looked him up on YouTube!I found a demo of this this upright Sounds really good - Then a Baby Grand which was also impressive to my ears.&feature=relatedI am no relation to Chris! He just deserves a bit of promotion !