I think it is a franchised firm Jane so people will have different experiences.
We had a large window replaced last year.They came and measured it ( unusual size) and ordered a new one.Heard nothing for three weeks.Then they came to fit it.It didn’t fit!
Had to take it away and remeasure and reorder.Two weeks later, came back with it, an old man and a youngster ( looked about 16) who struggled to lift it into place.?
Eventually they managed it.
Not great service, I think you will agree.