That is why I got mine - was on the way to work (SLK) - thunderstorm - by the time I'd come to a full stop and closed the roof I was pretty wet. People think that the problem is solved in the newer cars but the open/close has to begin while stopped and then you can move. For that reason and all the other advantages I have one in my SL.I wasn't planning on getting a SmartTop until the other day the rain started to fall on the way home. I tried to put the top up at the next light, but it turned green and we started to roll. The top wouldn't budge. So two Porsches and I pulled over into the same parking lot and we all did the roof top shuffle.
One Porsche had a manual roof, the other was auto soft-top and I was done and gone before they completed the process, but still I thought how much better it would have been if it would have just done its thing at the light.
So I ordered the SmartTop and this past Sunday I got help from my 13 year old daughter and installed it. The best part was seeing her smile when she felt good about a job well done.
Thanks for the recommendation.