I am a relatively new postdoc researcher who has submitted a journal and was notified that thematically it was not a good fit to the initial journal. The editor recommended another journal which is rather new (i.e. with no impact factor at the moment). They have stated that the editorial board of that other journal would be willing to accept my manuscript for consideration for publication (pending reviewers' comments).
My supervisor believes that it is a good piece of work, and publishing it into a journal with an unknown impact factor will not be good for my academic career. However, I feel like if we submit the manuscript to this journal, it will bypass the editorial board and head straight to the reviewers, which I think will pretty much guarantee an acceptance.
I am certain a lot of readers out here have experienced something like this. I just would like to know what is possibly detrimental about postdocs/academics submitting to journals without impact factors.