Anybody worked @ Bristol for Warburtons or Prompt Transport

Morning chaps,
I am due for interview with the above firms soon, and wondered if anybody has experience of working for them? If so, any info about conditions, training, pay etc etc would be much appreciated before I jump from, frying pan to fire in ignorance. Currently with Manpower for a short spell, but not much coming through from them at the moment so looking to go back to direct employment, for good or ill…