DeepL has its moments but it also has many many failure cases. It particularly is very bad with long text blocks, it commonly completely misses sections of text or repeats the same block of text multiple times.
Yeah this is my experience with DeepL as well. It might (sometimes) do better than Google Translate with lone sentences, but give it a few paragraphs and it'll entirely ignore some, and other times it starts repetitively rambling about stuff not even in the original text, quite frequently cars/houses/money.
