Bosch Universal was covered by America's Test Kitchen in the video link provided.
It's a fantastic machine for large quantities of white and whole wheat bread dough.
Unfortunately it's completely incapable of kneading anything that's either dense, like rye bread, or runny, like baguette dough.
Creaming is virtually inexistent unless you purchase an extra set of special paddles - and even then it requires you to process large amounts of batter; otherwise you'll find yourself scraping whatever collects above the paddle's clearance, a thick rim of batter around the bowl.
Don't get me wrong, I greatly appreciate it, but only when processing large quantities of certain types of products.
It also requires a learning curve considering how fast it runs - you need to stop and let the dough rest from time to time for example, running the machine constantly until the dough is ready will result in tearing gluten structure.
Their Compact model is a bit more flexible and actually pretty good at whipping and kneading - it would just be helpful if they updated the creaming attachment - there's too much space between the paddle and bowl which leads to constant stopping and scraping.
Main reason why I chose the Professional Bowl-Lift over Tilt-Head is the spiral dough hook which pushes the dough down constantly which leads to uniform kneading results regardless of type and density of dough being processed. It also comes with a denser whip which minimizes the possibility of cooking eggs while processing them with hot ingredients - virtually all of the product is being moved at the same time with no chance of developing hot spots.
It also offers a Bain Marie attachment, which combined with a small heater and maybe a thermometer, allows ridiculously easy and fool-proof way of making custards and egg-based creams.
All of my KitchenAid appliances were purchased from their very own online outlet, came with a 6 months warranty, and have worked absolutely perfectly for the past 5 years. Only exception, their refurbished blender started leaking - and KitchenAid sent me a *free* replacement pitcher, admitting there was a problem with the line of blenders in question - 2 years after purchase.