According to Jordan Weissmann at Slate Acosta is “Dull. Accomplished. Conservative. Dull.” Which is high praise for a Trump Administration nominee. So, it sounds like Acosta could wind up being more towards the Mattis or Chao end of the confirmation spectrum rather than the Jeff Sessions or Betsy DeVos side. Probably won’t match David Shulkin, though.
(I wonder what Ben Carson’s confirmation is going to be like?)