Excerpt: Its disappointing that this product comes from Logitech, whom I normally consider a top tier brand. The keyboard is a non-standard layout so you have to search for some of the keys when you need them. My biggest issue with this product is that the keyboard constantly loses connection with the computer.
Excerpt: this keyboard didn't work well for me. It skips keystrokes and sometimes just locks up completely. It has to be turned off and then back on for it to work, sometimes more than once per document. I have returned one set for an exchange already and plan to return this one too.
Excerpt: I thought my computer had a virus. It kept opening multiple Chrome and Explorer windows without me even touching the computer. I tried everything to get rid of it to no avail. I saw a couple of postings on-line that said this could be caused by a keyboard problem but I couldn't believe that so I ended up buying a new computer! Within one day the problem started all over again. This time I switched out the keyboard and everything is working fine.
Excerpt: I had a Logitech LX-710 bundle that I really liked but after many years of use keyboard died. I purchased this one. It has nowheres near the number of features either keyboard or mouse. I also didn't like top row of keys, black on dark gray very hard to see. I did like unify receiver. I returned today & upgraded to a mk-520.
Excerpt: I'm not a power user, but I use a keyboard for a lot of brief comments-- 6 or 8 sentences. I want one that has some "feel" to it so that I don't have to look at it to type or find my finger position. This one had no key "feel." I also want to hear the keys, and this one was so silent I couldn't tell whether I had depressed the key or not.