Ads submitted by those between 12 and 18 and ads containing suspicious words are reviewed by staff. Search results are returned in a seemingly random order, and with no submission dates. Used to be the best site around, but as the internet grew the site was apparently unable to handle the increased traffic. The site has nice features, but the database is highly unreliable and the search may not work properly. I don't know how large their database is.
Major flaw is lack of keyword search.
Profiles are not displayed until all of them are downloaded. This takes a long time, unless you're targeting a small country. Why I wrote this page This site is and will remain extremely concise and contain only the most relevant information. I've seen numerous reviews and directories on penpal sites, but none of them gave me any informative summary or comparison of features. In addition, sites are often praised or recommended based on no objective criteria.