I was wondering how does PL20 perform when compared to PL30?

I understand that both of them are priced differently (with the latter priced more expensively than the first), so in theory, PL30 is supposed to be better than PL20?

Just wondering if these two differ a lot as I'm looking to buy either PL20 or PL30; as PL20 is about RM60 and PL30 is about RM100 in here.

So yea, any comments or opinions are appreciated