Install Meta Tags and Meta Tags Quick modules on the same site
Couple of things to mention.
Meta Tags Quick does have a meta description field - check the module settings and enable the field for the content types.

Metatags and Meta Tags Quick can be installed on the same site - I've done this successfully (I do suggest testing on a mirror development site first). Bear in mind the two modules will duplicate some fields so you need to decide which fields you want each module to use.

The data cannot be imported from one module to the other however - maybe running SQL commands, but not from Drupal admin