I was very wary when I decided to try varifocals (6 yrs ago),........but I needn't have worried ,I loved them,!!
Wouldn't go back to having to swap between 2 pairs again, We go to Asda Opticians at our local superstore branch and get 2 pairs of designer specs for under £150 ( including lenses)
. Never had any problems with the frames at all, at the moment I have one frameless pair and another with a frame....just to ring the changes.
Been going there for years now and am still very happy. I don't need to wear them all the time ,mainly when on the laptop, tablet, reading or doing one of my hobbies, but as the day wears on and my eyes get tired I tend to wear them a bit more now.