難点

ビニールは熱(ねつ)に弱いのが難点だ。

The weakness of vinyl is that it is easily affected by heat.

彼(かれ)の援助で私(わたし)の父は難点を切り抜けた。

His support carried my father through.

あそこの食べ物はうまいし値段も安いが、地の利が悪(わるい)いのが難点だね。

That place's food is great, and their prices are good, but the fly in the ointment is their terrible location.

ただし押し込む瞬間気圧の変化(へんか)のせいでしょうか、耳がツンとするのが難点です。

However, maybe from the sudden change in pressure when you push them in, having your ears pop is a problem.