I agree. 90% of Glasgow is a toilet, the other 10% is rather good. Stick to the Merchant City and the West End.
Try the Ubiquitous Chip in Ashton Lane (West End) for good food and three good bars plus smoking terrace or Stravaigin on Gibson Street. Oran Mor on Byres Road is a good late night option.
Cafe Gandolfi and the bar above in the Merchant City are a Glasgow institutution. Otherwise try Babbity Bowsters or anywhere in Merchant Square.
HTH, JSL, HBAYT etc