Pretty easy to install with a guide on another website ...
590092
Worked perfectly to fix the broken coupling that wasn't allowing our washer to agitate. Pretty easy to install with a guide on another website and a YouTube video. Works just as well as the original!
3760771
This product comes with two printed guides. The first is a quick installation guide in English with marketing descriptions of modes rather than actual instructions. It lists a website URL; however, the URL resulted in a 404 error. The second is a detailed installation guide in Spanish. My laptop doesn't have an optical drive so I could not read the CD to see if it included the instructions. I had to google to find the actual English installation guide. With the installation guide, I was able to quickly and easily install the unit as a repeater.

For those who want to save a little time, the IP address for the device is 192.168.0.254 and the default username and password are both admin. When you first connect your computer to the device with an ethernet cable, you have to manually set an IP address for your ethernet connection.
2018262
The replacement screen went in fairly well and the website video installation guides were quite helpful.  You do need some small screwdrivers for this job.
4011620
Fairly easy to install.  Just be careful with your screw/bolts.  I tied my bold with dental floss to avoid losing it.  It helped to have a second hand available, too.
59550
Easy enough to install and use, just wish that it had a back light option.

The only 'problem' I had was that the paper manuals in my box were almost completely worthless. I ended up going to the Cateye website to pull the .PDF manual and had no problems after that.
1762158
Works great and they have a video online that explains how to install
4422461
Easy to install with youtube help getting into the case.
4723475
As described and provided a video to watch on how to install
754449
Easy installation. Registration on website took a bit as it was very slow.  Configuration was relatively easy even having to watch the videos to add a fifth wire as the "C" wire.
3394087
Inexpensive, delivered promptly and fairly easy to install. This unit doesn't come with any directions but YouTube will show you how to perform a heart transplant, or swap out a burnt out power supply. The wiring harnesses are a little confusing so I recommend just disconnecting and then reconnecting just one at a time. If an old locksmith in his 60s can do this, you can !
3816227
This was super easy to install. I found a video on YouTube that helped as well. Simple upgrade that is worth the buy!
3618728
Easy to install, easy to understand directions.
2857654
It was easy to install especially after watching the tutorial video on their website. The edges have also stayed on ever since day of installment.
453070
It was fairly easy to install. However I substituted some my own fastening hardware which was better suited. The wiring fasteners in particular are not the best.
1685193
Pretty easy to use after figuring out the instructions.
1180639
absolutely no instructions, kind of difficult to figure out but once you do it is easy to attach. Don't expect instruction but in the day of youtube.com one can easily find installation instruction for just about anything there!!!
536566
Works as advertised and easy to install, although no installation instructions were included.