This conclusion is now because the viewfinder a really useful addition is and that's what makes what should be.
Anyone familiar seekers from other cameras will perhaps have to change something (at least I was doing so), since the viewfinder is placed on the NEX above and you therefore need to hold the camera not in front but a little below the eye to the viewfinder to watch.
A star deduction there but for the price - in my view, too high for such an accessory.