Difficlt installation
595418
Poor product. No install instructions other than two vague tabs at the top. That same tab is stuck onto the film you place onto your phone. In 3 different tries when I took the tab off it left a residue on the protector marring the 'ultra premium clear' experience.
954212
Not complicated to install, took less than 20 seconds. Just twist out the old one and twist the new one in, let it run for the requested amount of minutes and you're done (literally the uninstall/install process was 20 seconds for me or less). Nothing more nothing less, it works for me.

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Enjoy your water!
Blu | SDGT Ent.
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2788445
I installed it my self.  Yes it takes a while.  If I have to do another it should be easier.  There is a learning process to learn the best technique to install.
4630818
Follow the well written install instructions verbatim and you will not be disappointment.
117636
Made installation much easier and more professional.
2449787
install was a a very simple after work task!!  Took under one hour to complete.  Hope product is as good was install!!!
4846777
This product is a very easy install. It seams to be a good product as stated by the mfg. Just follow the directions.
4341924
The disk is very fast and simple to install. Startup is a lot faster, as well as programs load, navigation, and file copy.
196628
Install--you're pretty much on your own. However, once the installation is complete the product is well worth the aggravation.  I'm so happy with my purchase & would recommend this product.
946495
So far so good. The install was very convoluted and without my daughters help I could not have do the installation.
4736601
performs as advertised, difficult to install. I advise for someone to have skills and extra tools with electronic supplies for this one.
489336
Easyinstall.  I called the helpline on Sunday. They answered the phone and helped me.
714046
I heard Grundfos products have a good quaiity and that's right,also installation is a zip. It took me 30 mins to install it and did;nt
encounter any problem. I'm happy to recommend this product.
3788134
Although it works as stated, the installation was very difficult.  The installatio instructions were difficult to follow and I came close to throwing the whole thing out
4620012
It is a great program but the set up and install was a bit of a chore. Once that was done it is a very cool program.
1218852
I like the product but was very glad to have the online instruction video.  I tried to install with just the written instuctions and didn't do well.  The video was very helpful.
790077
Super easy installation. Quiet and works very well. Would recommend