I used this company for two wardrobes, the makers of the doors and tracking are by Stanley, as you mention, the toolmakers, they are similar quality as sliderobes (who incidentally were double what I paid sliding-robes systems) and there is a 10 year guarantee - not sure if sliderobes offer this.
Have to say I was extremely happy with the service and finished product. One guy fit them in a few hours and the rooms were left hoovered and back to the way they were.
No hesitation in recommending them. Some of my family members also got them to do wardrobes for them and were very happy. Worth comparing them to Sliderobes.