i may feel the same . but gonna use it for a day tomorrow to see how i get on with it . i cant see how it could be a bad thing to have during the cold snap... everyone who i know that uses hot water says its good
I have been using one for the past three winters, wouldn't be without it.
When it gets down to -4 /-5 and you are still workingyou will be glad you got it.
One thing i would suggest is that when it gets down to minus whatever turn your water on and run back into the top of your tank before pulling any hose out, this helps to stop your hose freezing on the ground before you get hot water through..