だけあって

だけあって means "as you'd expect, given …". The first half names a fact – a reputation, a price, years of effort – and the second half gives the result that fact deserves. It follows the plain form of a verb or an い-adjective, a な-adjective with な, or a bare noun.

A noun takes だけあって directly. である can go in between in writing, and な in casual speech, but never の: ×一流のだけあって.

The second half is an evaluation, nearly always a favourable one. It states a fact, so it can't be a request, an invitation or something you intend to do. さすが at the start of the sentence is common and makes the "as expected" plain.

だけあって and だけに

だけに also links a fact to a fitting result, but the result can be good or bad, and it can be the opposite of what you hoped for. だけあって only confirms the expectation.

• × 期待していただけあって、がっかりした → 期待していただけに、がっかりした

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だけあって is at home in writing and in fairly careful speech. In conversation, さすが on its own does the same job: さすがぷろプロだね。The sentence-final form of the same idea is だけのことはある.