I have purchased 9 of these combo units for use in my office. My review is based on longterm use.If you are looking for a great typing experience with some waterproofing and wireless convenience coupled with a standard keyboard layout with a large backspace, shift and return keys without wanting to pay for a mechanical keyboard, this one is for you.However be warned that the mouse will almost definitely give up on either the left click or the right click after a year or year and a half depending on use.And Microsoft, when asked for support, will essentially tell you to go pleasure yourself, thank you for your money.You will be left with a perfectly servicable keyboard and an existential crisis about using up another usb slot for another wireless mouse.Shame on you Microsoft. You were supposed to be one of the greats.