I have always want a ergonomic keyboard . when I find one that I like at a good price , I buy it . it have work well for I , but after only six month , the letter on 8 of the key be wear off ! I do a lot of typing , and yes , I do know the keyboard well enough to not have to look at the letter , but come on ... that be poor craftsmanship . I have not have problem with the spacebar like many other have , though . -lrb- I be not typing this review on the keyboard . I be use my laptop . -rrb- the warranty from Microsoft say to return it to the store first . I do not buy it from Amazon -lrb- maybe I should have -rrb- . I go to a local office supply store . well , they would not replace it . now I have the inconvenience of have to mail it back to Microsoft , pay for it myself , and wait for a replacement .