Everybodies experiences seem to be different. Coming from a M3LR, I really noticed the ride being harder and more skittish. I think the higher driving position and higher centre of gravity doesn't help. I reduced the tyre pressures to low 40s but it didn't feel much different to me.
I thought I just needed time to get used to it but after 2 x 150 mile drives and feedback from others, it was clear to me that it wasn't as enjoyable to drive as the M3. Shame as I was really hoping to like the Y as much as the 3 but didn't work out that way.
I've read a lots of reviews here and online and most people seem to be happy but it really depends on your expectations as well as what you've been used to in your previous vehicle.