When you say "make sure you hold it the right way" do you mean clean it with the Electronics facing up?
Yes, so liquid will NOT get into the Electronics
the other option, place a plastic bag over it with a elastic band around the plastic bag. then you could have the electronics face up where it would be covered.
The only thing I found was difficult, is getting the connector off, after that step, its very easy.
Time from start to finish, [without rushing it] 1/2 hour, depends how dirty it is.
The only, and best way to clean it is to "Remove It", then you know its been done properly,
Not like the Stealers [Dealers], manually open the throttle and clean with a cloth/Rag, and charge you $99. Highway robbery , Thieves !, never again.
After they so call cleaned it, I removed it, and checked it, and it was still Filthy/Dirty at the back of it.
You could see they did a pathetic attempt, probably an apprentice that didn't have a clue, and no one supervising, where you still pay full price, that is financial advantage by deception.