Colors are true, print is bright. I also bought a set that was $20 cheaper for my daughter that had jersey knit sheets and I can tell the difference in this set- noticeably rougher. Sheets and comforter soften a bit after a few washes; colors stay true. Comforter is fluffy, but can still be tucked easily.
This was perfect for my 4 year-old son. He absolutely loves the print. The only reason I didn't give it a 5 is that the sheets are quite thin and have started to fade slightly after several washes. But the comforter is not too thin but not too heavy either. It's perfect!