3D/4D ultrasound yes or no?

Hello beautiful pregnant ladies! I've got a question. I'm going back and forth getting the 3D/4D ultrasound. I think it's very expensive but at the same time I'm also very curious. Did you have the ultrasound and was it worth it? And when is the best time to make that ultrasound? I'm 25+2 so I think this is the time to decide. Love to hear your opinions and to see your pictures!