So close is good enough and the 'fridge is the primary driver. 'How close' is a matter of personal preference and pride for some.
Levels near the controls sound convenient. However, since I have stabilizers and not levelers, I don't really want to crank up the back or front with the stabilizers. It looks like a lot of climbing in and out of the TV and checking to me (until I get good at it) - so the first place is front left corner. More to be added later.
I guess its a matter of time before I learn out how much sag on what type of surface to account for with the slide-out.
My uncle used to accuse me of being "half a bubble off plumb" and that's probably not a bad rule for the 'fridge - If the slide out has changed it by more than that, I should probably hook it up and try again.
The other requirement for the next trip out is to arrive before dark - it seems that Murphy probably has a rule about the first time set up in the dark with a dying flashlight.