Hmm, how have I not seen this before.
Got one myself, been using it for about a year now. Absolutely 0 wear on the keyboard keys, still as crisp and sharp as the day I got it, even though it does have some notable levels of grime on it in some places...
Year on and the battery life is still insane. I must admit I don't bother having the solar app installed as I don't really see the point. Very comfy and easy to type on for extended durations of time, and absolutely 0 lag, well very little, so I've had no issues with it for gaming. I did manage to drop it the other day, and managed to scrape a bit of the white plastic which was a bit of a pain. Also broke one of the feet. Thankfully Logitech sell the feet for £2. I actually got some for free off of Customer Services, but the fact that they even sell the feet is a very nice feature.
Considering buying a second tbh just in case these are discontinued at some point.
kd