I got the Helix Rack from Thomann, and got the floor controller and case in their well-priced bundle pack. The Line6 Helix Rack is an excellent product, and the Controller is a great addition.
The scribble strips and display are easy to read at all light levels, the footswitches are nicely tactile, and the whole unit has a reassuring build quality without feeling like it's been weighed down with lead. One feature that I really love is that there's no need for an extra power supply for the Controller, as both power and signal are carried by the supplied Cat 5 Ethernet cable. There are also sockets for fitting additional effects and expression pedals (try Mission Engineering's pedal designed especially for the Helix).
For a live setup, no power cable(s) need to be run to the stage, no need to check/replace batteries for your pedals. Everything is much neater (and lighter!).
If you don't have the Rack sitting within arm's reach at all times, you really should add this to your setup.