I’m using a standard prototype cell with a label and a detail text. I set the detail text to be two lines and set the text to something with a line break. This works fine – however, the (left aligned) main label has lost its vertical centering, though I didn’t change any of its attributes.
This is what it looks like in Storyboard:

“Title” should be vertically centered.
You can use a custom cell in which you can define the attributes of the custom properties.The size of the text label is not fixed. I think this is the reason why the alignment does not work.