The only issue I have is that the battery cover pops off easily. I just put some duct tape over it.
The bags are more difficult to seal than a regular ziploc bag, but once sealed they work great.
Update on these after almost a year of using them: Now that it's just us too, I plan to put all what I freeze in one larger bag, and just take out what we need. Other than corn, I think it will work great for us, and us on buying ziploc bags this year.