Recs.
Updated
SpecsUpdate
Pros
Pro Allows setting offline storage limits
If your device does not have enough space to store offline articles, Pocket allows users to set the maximum size for the app to store offline articles. Priority of the offline articles will be based on newest first or oldest first, based on the users preferences.
Pro Imports all bookmarks and converts them into articles for offline reading
Cons
Con Correct and open export of bookmarks and tags are not possible
This means that Pocket is (currently) a total lock-in.
This is very sad, unfortunate and creates a no go decision for any seasoned user.
Too many bookmarking and tagging companies have stopped or have gone bankrupt these last years (e.g. Kippt, Spingpad, Delicious (to some extent), etc.). So, if you are going to invest a lot of your personal time and energy in curating your Internet findings (i.e. your bookmarks and tags), it is essential that a total, fair and open export (including all tags) functionality is provided. Personally tested the export "feature" and the resulting .html file that Pocket generates currently included only the URLs themselves, i.e. no save dates nor any of your personally curated tags, nor any other useful meta-data.
This is deplorable, because otherwise, Pocket is a very polished and well-functioning piece of multi-platform and multi-device software/app/web service, with a very easy and well-designed and implemented user interface.
These days of open and inter-operable web services, users are only attracted by valuable functionality, clean UX design and no lockins.