this be my very first ergonomic keyboard and it be my favorite . I have try many other by the same company and other company as well . however , this be my favorite because it truly be comfortable and the key be easy to work with , in other word they do not stick like some other . find out recently they be discontinue this model but I find it on amazon.com and I receive it in excellent condition and on time . very grateful for that ! I highly recommend this product .