None of the links we provide are below PR 4. This is considered just above average by Google and we provide only higher than this level. We have a mixture PR4 - PR8 links in all of our packages.
Well, since our backlinks all have to look natural and not "spammy" we allocate our time and backlinks throughout an entire month from the day we begin your order. This way we assure we follow all the Google Panda and Penguin requirements.
We do a mixture of social bookmarks, wiki links, edu sites, blog comments, etc. Rest assured that everything we do here is completely natural and from high authority sites.