Can anyone share any experiences with the Munich City Stachus location? It will be the most convenient location for me and my primary concerns are with the availability of nice cars (A BMW 1er or 3er would be ideal) and hassle given on rental and return (not looking to have a cleaning fee charged or have the car examined with a microsope) so I'm willing to move the reservation if there's a better choice.

Also, what should I expect to get when requesting a navigation system? I have seen mentions of a portable Tomtom unit but do I also have a chance of getting integrated navigation?

I'd also like to share the discount link I found from United: http://www.sixt.com/partner/united/. It doesn't save much for the Stachus location but offers significant savings at other locations for my dates.