Be sure you consider the small screen size before you buy. Also, set up was difficult, at least for me. Ended up enlisting the help of a friend.

Gets the job done. Do not like the field where you're meant to put some label into, would be nicer without it.
Somewhat difficult to enter the target time because you can not enter the hour, so you need to trick around with your current time if you want to let's say put the end time to 12 PM, Jan 20, 2021. You do not want to use this product if you need to enter non-midnight target times more often than rarely. Cost $21 when i bought it, so the price is right.

The good: The unit is easy to understand and program. Within a few minutes of opening the package, I had it set up for a countdown of the days until my retirement. The display is clear and otherwise easy to read. Each of the modes is useful in a different way. I like the window allowing me to customize it and show the goal of my countdown.

The bad: Despite my goal being over 2000 days away, the unit only runs for a few days before an alarm sounds and it resets to default. The first couple of times it did this, I thought perhaps the provided battery was just bad. I put a brand new battery in it and reprogrammed it, expecting no repeats. Unfortunately, the behavior continued and the unit has never worked for more than a few days at a time.

Summary: If this unit worked for more than a few days at a time, I'd be very happy with it. Unfortunately, I allowed the return window to lapse - my fault - so it's worthless. I could just have one bad unit out of a thousand good ones, so I'd recommend to anyone purchasing one to set it up right away and if you run into any trouble, return it immediately.

This product is not for everyone, but I love it. Everyday, I look at getting closer to the goal that I set. Some people think it's too much pressure. Unlike some of the similar products, this one will allow you to set a goal 8 years into the future. Most of the other products could only count down 999 days. I love it. I wish you could set more than one target date, but one at a time is fine for now. I don't have overlapping goals yet.

I bought this as a gift for a friend who had announced her retirement date. As other reviewers have stated, the instructions are horrific. But, once I figured out what they were trying to convey, it seemed to work well. She loved the idea of it, even posting rave reviews and photos on Facebook. it remains to be seen how long the battery lasts.