I have been using Alfred for the last 6-7 months and I have used Quicksilver and the Google version, Google Search Box. I currently have the Powerpack version. I agree with a lot of the positive comments here so I won't repeat myself but I do admit that it is pretty good at filtering out results and find the exact file or application that you are looking for. In addition, it requires very little setup compared to its competition and has a very pleasing UI. Now here comes the bad part, it is lacking in the ability to search and copy files between different drives or explore external drives. I have been struggling a lot with trying to get Alfred to copy files from mac to a flash drive. QSB and QS seem to have this down so sometimes i out of frustration I just switch over to QSB. So yeah I do bounce between QSB and Alfred. So overall, Alfred is definitely one of the best of its type but if you rely on your app to move files or use it to search and explore your external drives, Alfred hasn't mastered that common feature that its competitors have. And yeah I have contacted them but they have dropped communication with me since their recommended adjustments have not worked.

I have been bouncing between Curio and Circus Ponies's Notebook for an alternative for MS OneNote for notetaking. While both are reliable alternatives I think the future and the edge goes to Curio. It has been a long time since Notebook been progressing and the development with Curio has been active. Also Curio has A LOT of flexibility to deal with a wide range of notetaking or brainstorming tasks, while CP Notebook does not offer the flexibility to modify the pages/canvas. With Curio, I can create my own custom templates for certain note taking scenarios and create some basic stencils. There is a lot more to mention but the latest additions in Curio 7 make it a major competitor in the note taking/brainstorming software arena.