Thats too bad for u bro as u had an irresponsible installer who i later terminated ... lol
I've installed on thousands of cars over the past 6years in fact those who bought from service centers 10years ago is still seeing me for their regular cleaning ... so do get ur facts right before jumping into conclusion ...
As for the burst of fuel line its most likely that ur favorite installer did a slip shot work by over tightening the clips or replaced the quality hose to a cheaper type for u ...
Have a good day Bing Yao !!!