The new film capacitor is better than electrolyte one. The main reason is film caps can handle more head dissipation and we can also add heatsink and also increase the life. Which was main problem for electrolyte,which are destroyed by little overheating. Second reason is film caps has low esr and esl values . It is obvious that for capacitor it should be as low as possible.film caps are low in weight per fards and size also.