I bought a Playbook a week ago, and returned it yesterday.
In some ways I loved the device, the size, shape and general feel, I even mastered the various swipes after a minute or two. Indeed, I found it to be relatively easy to use but there were just too many niggling little, or maybe not so little, things wrong with it.
I found many of the preloaded apps were half baked, e.g. Sheet to Go. A spreadsheet without the ability to re size columns or to copy and paste, the very key to using a spreadsheet. Downloadable apps were very basic and mostly came with little or no documentation.
Upgrades had the problem of causing some apps to disappear, especially Need for Speed and Tetris. Oh yes, there was a fix, found after exhaustive search of the Crackberry Forums. And that is another story, the Playbook has a Forum, so called, but with no entries since February, obviously abandoned so one must go to Crackberry. Now this is a mix of RIM Cell Phone and Playbook, but while searching I was unable to single out Playbook instead getting answers that mostly pertained to phones. Maybe it was just me, being not too bright, but I found it extremely confusing and difficult to work through. And support forums play a major role in adjusting to a new device, hence the value of this forum.
Overall I liked the Playbook's potential but I consider it like buying a new car only to be told that it only comes with three doors, the right rear passenger door will be released in June, the diesel engine it uses today will be replaced late Summer with an unleaded gasoline one, and for the moment the leather seats are actually cardboard.
Maybe, in a few months Playbook will be ready to use and enjoy, for me I guess it's put my name down for the next available iPad 2.