I quite enjoy using the WLF on my Yashica TLR. The lateral reversal doesn't bother me usually, though I'm not trying to follow action with it. There are times where the WLF isn't as practical of course, but then again there are times when an eyelevel finder isn't the best choice either. Like Roger I tend to use it more at chest/neck level. I've also used it turned on its side for eyelevel work, though that gets very disorienting unless I slow down a lot and think everything through, but with more practice, that might get easier. The only other issue is in low light it can get very hard to compose at all, but that's more an issue with the dim screen on this particular camera.