5週3日目 あるだけましだ
Evaluation・cause・basis
接続：普通形＋だけあって
indeed worthy; For that reason, the results are appropriate
注意 / Note：The results WORTH the reason — so the latter is almost always a compliment or good review. Here is another place where 〜だけに: 〜だけに can be used for bad results, while 〜だけあって is mostly used for compliments.
比較 / Compare：Same song: 〜だけましだ／〜だけでも. These models are often mistakenly chosen for each other — carefully read the 接続 and nuances above and then decide.
よく出る形 / Common form：普通形・名詞＋だけあって、〜。Or go with さすが. The latter part is what convinces the speaker.
専門家だけあって、説明が分かりやすい。
Truly an expert, the explanation is very easy to understand.
高いだけあって、品質がいい。
It's expensive so the quality is good.
長年住んでいるだけあって、彼はこの町の裏道まで知っている。
As expected, having lived here for a long time, he knows all the alleys of the town.