How much snow is debatable dependent on how high up you are. Put it this way. we got the chairlift up the black run and because the next lift further up was closed we decided to walk across to the red run. On step of the piste and i was in snow half way up my thigh.
Great conditions........do not worry on the snow front
I would have to disagree with you there "me" I was there last week and I would say Bansko is very much a beginner/intermediate resort with a couple of runs for the more advanced.
I am taking a group out next year most of which are beginner and Hopefully I will have them skiing down from the top of the mountain by the end of the week as my wife did last week.