I may have to get an Oliso iron someday soon. I have lots of trouble with arthritis in my hand and shoulder, which makes the motion of setting an iron up and down somewhat painful. I wish I could find a really lightweight iron that did a good job.
Re the auto shutoff - I wouldn't be without it! I left my tiny iron on all night not long ago - thank goodness the cat didn't knock it over! I forgot to do it that day, but most times I put an orange elastic around my wrist when I turn on the iron. If it's still on my wrist when I'm making dinner, I know to go turn the iron off! Even with auto-shutoff on my big iron, I'd rather it be completely off. I also turn off the power to the surge protector it's plugged into. I've heard stories of irons catching rooms on fire!