Speed X is one of my favorites. I love this ride! It has that thrilling feeling that I'm looking for when I ride a roller coaster. Speed X is well designed and beautiful to look at. The park setting is very nicely done, with flowers, bushes and trees all well chosen and nicely placed, and I like the colors chosen for the roller coaster. The tunnel is perfectly placed and creates that sudden surprise effect. Overall, I can't think of much to criticize. If you don't have this one in your collection, you're missing out on a great ride. I hope that when I start releasing my own creations, that I can do half as well as this. But I expected it to be good, maicon creates some great roller coasters! Highly recommended!