Using Directory or plain WordPress

Please forgive me, if this question is kinda stupid, but anyway:
- I want to create a simple review-portal, which basically only supports 2 categories
- No other 'blogging' features of WP are needed, except pages.
- Wouldn't it be better then to create the listing using WP's built-in features, instead of using a listing plugin like Directory?
- What would be the benefit of Directory in that case (please note: for membership/login I plan on using the Membership-plugin).

Any info/comment appreciated. Positive or negative...