Very few apps, There are mostly for me (Facebook, Twitter, Foursquare ...), the push mail is still amazing compared to other brands, especially securing data with Blackberry Protect is a very good initiative from the brand that helps you remotely wipe your data in case you lose your phone.
The design is unique to the brand, it holds well in hand, the screen is clear, I am a fan of personalization profiles that goes up to the customization of vibration modes, which have not yet found on phones called "Top of ranges." The Bold keyboards are always well thought out, for me those are the best that is why I have remained faithful to this brand.
The weaknesses that I can find is the quality of the camera pictures not very aesthetic (especially with flash), no HD video but VGA.