The flared base genuinely makes a difference — they stay put on their own, so my hands are free to wander. Wasn't sure the seal would hold but it does, even when things get a bit vigorous.
Timothy★★★☆☆
The suction is decent once you get them positioned right, but I had to fiddle with the silicone edges a bit before they'd stay put. They do free up your hands like the description says, which is the main reason I kept them.
George★★★☆☆
The flared base does hold a seal, so I could keep my hands free like the description says. The suction is honestly stronger than I expected, which was a bit much for me at first. Fine for the price, just not something I reach for often.