There's a lot to like about this cycle computer. The "buttonless" design works well and allows a large display with most everything you'll need on one very readable page. I was especially pleased to find that, unlike my old CatEye, you can preset an odometer reading. I was also pleased to find that it has a 2 bike capability. You set wheel circumfrence and can preset an odometer readings for each. A single button on the back toggles between bikes. All that's needed is another wire/sensor harness which is relatively cheap. Modes are selected by pressing up on the entire computer and will show an odometer reading for the selected bike or an accumulated reading for both. The clock feature is also welcome.

The only negative is the temperature reading, which proved to be wildly inaccurate. I think sunshine causes a greeen-house effect inside the sealed unit. Whatever, it reads much higher than actual air temperature although tucked away in the garage the reading is reasonably accurate. Temperature reading wasn't a big issue with me anyway.

I couldn't be happier with it! 5 stars

I bought this unit because I wanted a temperature read out, and I didn't want to spend a bundle for a wireless cyclometer -- I found no other choices meeting these requirements. I think this bike computer has some serious drawbacks. 1. Don't get caught out in the rain. When the computer gets wet, the display disappears, it stops working and doesn't return to normal for hours. 2. To switch between screens you press the unit from the bottom, but if held for a second, this zeros out the current ride data. I found the computer sometimes zeroed out the data, when I only wanted to switch screens -- most annoying. 3. After about a year the display faded, and after I put in a new battery, many of the segments in the numerals never recovered properly and remained dim.

If, like me, you want temperature information on your rides it appears this the best available at the price. 2 stars

Like others have reported, the thermometer only reads correctly in the shade. The only other problem is that when I ride in the rain, which I try to avoid, it turns off. That said, it comes back and works great when dried off. Everything else is awesome. It has a really nice big display, so you can easily read everything and get a lot of data at once. The whole unit acts as the button to toggle between screens, so that is easy to do as well. This thing has taken a lot of abuse and kept going. Combine the great display, ease of use, super price and thermometer that does work well in shade and the Planet Bike Protege 9.0 is a real deal. 5 stars

Everything works well and is well designed about this computer except the thermometer. It is only accurate in the shade. When it hits the sun it will be 5 to 10 degrees too warm. Otherwise having so many functions on one screen is wonderful. Everthing else works flawlessly! For the price, you can overlook the temp problem and park the bike in the shade to get good readings or use the readings for better war stories.

Would be nice to create a wireless version and make the sensor less sensitive to sun. 4 stars

What's not to like? Bike data, time, temp, low cost, this unit has performed very well. So well I bought another one for my mountain bike. My road bike has had one for 2 years and over 4,000 miles. This spring the display started to fade in and out... still functional, but almost a slow dim/regular warning. So I bought a common CR2032 battery, changed it, reset the data (make sure you copy your mileage if you want to re-enter it into the newly erased unit. The battery change wipes it out) and all was well.

Regarding the temperature reading, it's fairly accurate when NOT in direct sunlight, but goes bonkers when in the sunlight. This is more comical than anything... you've GOT to understand how a thermometre works and take into account the environment this unit operates in. Plus it's not exactly an expensive unit... the temperature is a bonus, not the primary feature! (DOH!)

I'm glad it's there, but I'm not really counting on it for critical readings. Am much happier with the units features, the clock, etc. Switching displays requires a simple tap... not a long push (will reset data from the current ride.)

All I want at a can't beat price! 5 stars