I had no issues with the CVT in the 2012 Altima I drove. Its a low rent family car, I can't say I cared as to how it shifted.
It's not the shifting, its the whine at freeways speeds that is Nissan's issue. It's also the awful paring with the 3.5 V6. It's better in their 4 cyl applications but still the whine.
I've not driven a Honda CVT to see if it's better.