It is worth for the price. The main reason I bought it is that I`ve lost my lens cap with a more expensive polariser. So instead of investing in the original caps and an expensive polariser which I rarely use, I went for this kit.The cap - not sure about it. I have a feeling it is touching the front glass of the lens (Sony SEL 28-70). Therefore I`ve attached the UV lens and attached the cap on that. Not ideal, cos I don`t want to keep the UV glass on it (after a couple of tests it seems I`m losing half a stop with it).The lens hood - a screw in hood which I`m not likely to use, as the original 'click' one is more convenient. It might be good for one of my old M42 lens though.Filters - CPL seems to work fine, bit sticky when rotating, but it will get smoother. UV is alright, as I said, it seems I`m losing a little bit of light through it, nothing major. ND filters seem good as well, after a couple of shots I don`t see loss of sharpness or any color deviations. The purple one I haven`t used and not planning to use either. The filters come in a great little pouch.All in all it`s a good backup for more expensive gear or as a cheap alternative for the big brands.