As a longtime Apple user I always appreciated the uniformity of the OS's GUI. Clean and tidy. However, the OSX dock is not. It's reminds me of a piece of M$-bloathware. The genie or bottle-effects are useless. Like a joke they're funny the first time, than they get stale pretty quick. The parade of Icons with different shapes, colours and sizes is countereffective of the whole point Apple is trying to make with it's GUI. While this is strictly a cosmetic issue and rather subjective, I find it also less or even counter-produktive for the workflow.
As a longtime Apple-user I love to poke fun at anything M$ as much as the next best Apple-user. But the MS "taskbar" is simply more practical than Apple's Dock. Looks better, feels better and works better. It's more uniform with the OSX GUI and if you ask me, more conform Apple's own GUI design-standards. Switcheroo is a wonderfull attempt to add some funtionality to a near perfect OS. It perfectly blends with the OSX GUI(no worries, it's not MS-blue!). After a while, if you go back to dock you wil find this has become a nuisance to use.
However the app is still in development and it's not perfect yet. For instance not every item I had in dock, migrated to my new "taskbar". They just show up as unresponsive blank icons. And after some mac-usage the "taskbar" shifted "on top" of instead of "over" the dock, covering it. Nothing a good restart will solve but still. Not there yet, but a potential "must-have".