As to Wikidata descriptions, I think it's a good first step. As someone mentioned, it's pretty useless for most languages, as there are no descriptions on Wikidata. IMHO the next step is auto-generating short descriptions from the item statements, which will be perfectly fine for the vast majority of cases.
If this is done, I suggest to NOT put the auto-generated text in the manual description field, as descriptions will improve over time, through both new statements and better algorithms. Rather, cache descriptions separately, and update them as required.