Just a matter of getting used to it. I had all of the same feelings you had when I first tried the stuff years ago.
In the nice weather, I still do prefer a full wash unless I'm in a hurry. Something satisfying about the bucket of bubbles, hose, and washing the good old fashioned way. So for me it's ONR occasionally in the summer, and ONR always in early spring/late autumn/winter.
'15 i3 REX // Capparis // ZGW // ZTD // HK // 20"
20% Tint, Coding, LED High Beams/Signals, Painted Reflectors, MAX2 Hardwire
Past: F30 335i, E90 328xi