I am 27 weeks tomorrow and the last scan I had was amazing but it wasn't 4D. The pictures are amazing they are really clear and the people that do it are nice.
Everytime I go in for an ultrasound the nurse does a 3D and a 4D ultrasound! I get them done at a hospital so the ladies love seeing the baby! It's really awesome! The further along you are the better! But I love it! Always find him sucking is thumb or smiling, even hiding his face it's so cute