I hate my aplix flips. It's a pain to remember the laundry tabs and I inevitably end up snagging the fabric. My fleece liners stick to the Velcro so the Velcro looks rough already and I've only had them a few months. They look so much older than the snap flips and Diaper Safari covers I got right around the same time. I was so sure I would prefer aplix too.
If I'm comparing snap Flips to snap DS...it's very close. I'd have to give DS the win because of the bigger back flap, value, and awesome color selection.