Halifax mortgage promise

Hi all

I have applied and been granted a DIP with the Halifax, read on here some horror stories about this being unreliable. Just wondering what they've done at this stage to assess my suitability?

I have provided 100% factual info and let them know I have a 4 year old satisfied default, they accepted these and offered DIP. Does this mean once they confirm my info as accurate I will likely receive a mortgage offer?