I use to have the microsoft ergonomic keyboard , the big white one with the split keyboard , and it be awesome until it stop typing b 's and z 's . I be go to buy another but i figure it be about time to try something new . that be when i run across this keyboard . I be not sure if it would work well and i be especially weary of the battery thing . I mean what good be a computer without a keyboard or one that die in the middle of use it ? but so far everything have be great . no lag time . no battery issue . it even come with some handy little volume and function button . if i have to complain about one thing it would be the ` wave ' keyboard . I like the ` split ' keyboard better because i be a bigger guy who do not want to have my elbows\/wrists all smush together to type . it be not bad , but its definitely more strain than before . other than that its be great .