It's a luxury but it comes in handy. Depends on your situation.
On my previous tank, I had the Profilux in a whole different room, so it was definitely a plus to have.
Something as simple as entering feed mode would get old fast if I had to keep going into my garage and then into the fish room and then back in the house to the tank just to feed the fish.
Now my Profilux is located right under the tank behind the door of the stand.
But I still use the Touch for things because it's still easier than opening the door, bending down and making my way through the menu system.
It's also easy to see parameters at a glance.
Every morning I roll out of bed and walk past the tank on my way to let the dogs out and can quickly glance and see that everything is good.