These were the second pair of glasses that I purchased from Tenda. The first purchase was some years ago and I now need an updated prescription.
Having used them for about a month I can unreservedly say that the service and quality of goods offered by Tenda are absolutely excellent.
I required a varifocal lens and opted for the thinnest lens option and I am astounded by the optical quality in terms of clarity but also the very well placed power of magnification through the various areas of the lens. Usually, when I need a new lens with a new prescription there is about a week or so as you adjust to the slightly different parts of the lens having a differing power, and you a) adapt to the inevitable image warping, particularly at the sides and also finding the right part of the lens for near and far distance use. These lenses felt clear and comfortable right away.
The frames are fun and comfortable and the online facility to let you superimpose the glasses on a photo of yourself whilst not as good as a mirror and trying them on for real, was a great aid in helping me choose.
I am totally satisfied with my purchase, especially considering the total cost was about 1/3rd of what I would have had to pay at a high street optician.