Admittedly, when Billie was first announced as the Doctor's companion, I felt like...
... but she actually turned out to be very good.
Tate, however, I feel won't be.
I find her way too irritating. I despise her "comedy", & the mere site of her annoys me.
I wasn't impressed by the last Christmas special, especially Tate's annoying character.
I really am not looking forward to suffering that same annoying character for an entire series.