I am extremely pleased with this slip cover.  It fits perfectly and looks good.  I have had Sure Fit covers before and they always go through the laundry with no problem, so that's also a plus.  I got the Cream color and it is a bit more beige than ivory. . I was able to tuck it in between the back and the seat which helps keep it in place.  Yes, they do sometimes need repositioning a bit, smoothing out,  after sitting,  but I honestly don't recall ever having slipcovers that didn't.. 
My chairs are similar to the picture.
 Their dimensions are; 
Seat: 15-18" W (tapers from back to front) x 17"Deep x 3 1/2"Thick Cushioning 
 Back: 15" W  x  21 1/2" Height x  2 1/2" Thick Cushioning
 Total height is:  38"
Hope this helps others decide before buying. 

Pros: Good price, nice look, fits well, reliable brand