Unfortunately unreliable. Both broke, the first one and the replacement within warranty, within a few months. Used on a covered balcony. Very easy programming.

I have the old one in the garden for 4 years. Forgotten there, it has not stopped working. In the winter, I cover it with a thick cloth. Normally recommended by the manufacturer when not in use to be stored in a shady place. The new one has been working for 1+ year, without any problem. Extremely easy to program. Perfect.

The first Orbit Buddy lasted for 3 years, so I purchased a second one. However, the second one only worked for a month. It completely disappointed me. It appears to be working, but it doesn't send water when it should. The solenoid valve doesn't open. That's why I give it a rating of 1 out of 5.

After eight years, I went one day to the vacation house and saw that it had a major internal leak... what can I say, it held up well but the bill will show the damage

It is the fifth one I buy. They all work perfectly for many years. The easiest programmer. Tip. After the end of the watering period, disconnect it from the faucet, in order to have it for many years.

I have bought 5. And my brother 2. (singles and doubles) The last ones we bought unfortunately often don't stop watering. As long as I was home and could control them, I wasn't worried. I went on vacation this summer and when I came back, I found them working. I'm scared at the thought of how high the water bill will be. It's a shame because my family has been using them for many years.

I have it for 5 years. Excellent!!
It is in a spot where the sun hits it and I change the battery preemptively once a year (AA).
It is very easy to program with many combinations and it has never hung on me. What it can't do is have different programming for each day like some digital ones now. Specialized indeed, but to each their own...
When it breaks (and if it does), I will still buy the same one.

In six months it broke and the service was nonexistent. In order for the warranty to be valid, you need to know the production date and not what the purchase receipt says..... That's it..

Perhaps the easiest irrigation programming device. My mediocre rating is based on the very poor quality and difficult-to-use plug that screws onto the faucet. As a result, I had a hard time screwing it on and had to unscrew it after 6 months. Unfortunately, due to its poor quality, the threads on the connector that screws onto the faucet got worn out and it ended up being useless.

EDIT.
In the end, with a makeshift 3.5' adapter and the addition of 4 flanges inside the adapter, I managed to reconnect it and make it work without any leaks.

It's been some years since I bought it, now I'm doing an evaluation. I always used to buy cheap or the cheapest of these. I have some plants, not professional, etc. I am very satisfied, it's easy to screw and program, just simple things, snap and you're done. Luckily, it didn't bother me because it endured some bad rains that I forgot about during the winter.

The best out of several that I have tried. The build quality and ease of programming/handling are its strong points.

After nine months, it still operates without any issues. It is easily adjustable and the build quality is very good. So far, the screen has not been affected by the sun (it continues to display).

update 21/5/2020: It still works flawlessly.

I have three similar ones. They have been working morning and night for 1 year, 5 minutes each day, around the hotel. Never had any issues so far. Easy to program. Heavy construction.