Set-up is easy, suction cup holds REALLY well, music is loud and clear (adjust volume on iPod for best sound), and phone calls come in clear, too.

Suction cup isn't very strong

As fasteners suction cups are notoriously weak unless you know the secret of a permanent seal: a dab of petroleum jelly around the rim to make it air tight

The suction cup is powerful enough that it’s never fallen off the shower wall.

The suction cup is powerful enough that it’s never fallen off the shower wall.

The suction cup is surprisingly strong

Suction cup is good, hasn't fallen off yet

Only thing is the suction cup is tricky to stay up anywhere without a perfectly smooth surface, like a window

Instructions say it will resist some water so I am afraid of putting it to the ultimate water resistance test, so far it's been sitting next to the shower without any issue, the suction cup sure works.