My non digital was horrible. It wouldn't stay consistent, but somehow managed to still hatch good. I really liked the digital as it stayed at 102 within .2 degrees after j got it set. I liked it, until now. But, it lasted six hatches while the non digital lasted 4 years. I may end up getting another one of those.
Wow...that is great that it has done so good for you!! So is it not working now at all or what's going on?