Years ago I found myself with four pairs of glasses at a time: distance, reading, sunglasses for distance, sunglasses for reading... So I changed to varifocals and now only need one pair of plain and one pair of tinted lenses.
It sounds to me like some of the problems people are describing are because the lenses haven't been measured and fitted correctly.
I agree with the comments that having a smaller frame will make it harder to accommodate the three zones of vision in varifocal lenses. I've had some like this over the years.
With one pair I could only read out of the very bottom left hand corner of one of the lenses. Hopeless.
I went back and had them remeasured, lenses remade and refitted.
It's a very precise art as they have to be perfectly sure they mark the spot on the lenses for the centre of your pupils exactly where it'll be when you're wearing them.
I'd say to anyone that's not happy with your varifocals, go back and get them checked that they have been measured correctly. I've had to have a couple of pairs of lenses remade over the years because they weren't correct.
I had a new pair earlier this year and the assistant measured very carefully, then got a colleague to check she'd got it right. That was in Boots.