My son attended Up and Growing for a year before he started PreK. He was more than well prepared. He was the only on in the class writing his name, he knew the sounds of all the letter in the alphabet and has continued to perform grades above his classmates. I didn't expect him to learn so much, but I believe his current success is a direct result of the teaching he received at Up and Growing.
My only complaint would be the high turn around they had in staff members. The Head teacher remained constant, but within a 2-3 week span they had at least 4-5 different assistant teachers.
Overall it was a great foundation for my son. Who's now entering the 2nd grade and continues to excel!