You have to be careful so it doesn't roll off the countertop but the rubber base holds it firmly in place. We hold it and roll it around to help our red wine breathe. Overall we really do love it!
Overall it is not a bad piece, the rubber mat that comes with it keeps it from going all over the place. The only real downside that I have with it is that the glass is thin and feels very easily breakable. Everyone that sees it immediately talks about it. Would be perfect if the price was a little lower.