Any experience with CTY's Elementary Problem Solving course ?

DS finished Accelerated Grade 2 Math, now our options are Accelerated Grade 3 Math or Elementary Problem Solving - I.

I am afraid Elementary Problem Solving might get too repetitive for him.

Thanks!

Last year, DD did grade 2 math and EPS1. She loved the Problem solving course and this year we went straight from grade 3 into 4 and she is a little annoyed why she couldn't do the EPS as it was so much fun. She didn't learn any new math but it was fun application. I just wanted to slow the pace a bit since she was so busy. She was even busier this year but I wanted to get through 2 grades this year in math to ease up next year.