same content in article and meta description?

My site is ecommerce with hundreds of products.

the structure of each product page likes below:

overviews:
**** is great *** and blah blah

features:
...

Specifications:
....

every products have unique content but no meta description , I have 2 solutions here:

1. automated meta descripion: use fixed format like "Buy %product name as low as %price with free shipping"

2. just use the same content in overviews

I know write new description is good but I don't have time to do that, so which is better solution and do you have any suggestion? thanks