I had a curved monitor at one of my previous companies. To be honest I didn't find the experience substantially different than a non-curved monitor. YMMV.
I have basically the same experience, no significant pros or cons
Same here. One benefit of having multiple screens is that you can turn some of them off when you don't really need/want them. I have 1 in pivot mode for reading documentation, while the main monitor just in landscape for coding.