Quite disastrous
First of all, I had to return a brand new 1st unit under warranty, as it didn't work with the RF link.
The second one I received makes me regret not having used my right of withdrawal.
The RF connection was pretty awful, working only at (very) short distances.
I had to connect the dongle to the top of my box. Plugged in at the back, I had too many problems.
It can sometimes go haywire: spontaneous repetitions and keystrokes, sometimes to the point of rebooting the PC!
The exaggeratedly fine engraving on the keys makes them unreadable without backlighting, even in broad daylight.
And even with the backlight on, you'd better know the key functions by heart.
Because they are only partially backlit.
To distinguish between the Shift and Alt functions, you'll need a headlamp!
It's hard to get out of standby (3 or 4 keystrokes are needed) and sometimes hard to get in.
It's not uncommon for the backlight to still be active 1/4 hour after the PC has been used or even switched off.
To make up for this inconvenience, I once used the ridiculous little switch on the back of the keyboard to turn it off.
But it started to make false contacts and I no longer touch it so as not to end up with an unusable keyboard.
So much for the impact on battery life (3-4 days for daily use of 4 hours maximum).
Battery life is a bit tricky to measure, as you often have to go over it several times before you get the same result twice.
All this for the modest sum of 250 €!
I don't use its gaming capabilities (backlight customisation, profiles or whatever). No Razer software installed.
I was just looking for a wireless backlit keyboard with more robust keys than the far too fragile ones on my previous Logitech K800s (which I also liked).
That's how I came across this 'thing'.
I hope at least that on this point it will hold up.
