I know this is a "classic" but in this version my almost 5 year old son (and myself actually) have trouble following the track.  You move from left to right and then when you get to the end of the row you move up one space and then move right to left then on the next row you do the opposite again.  The spaces are numbered but it is hard to read and my son obviously cannot follow the higher numbers.  So you end up going one way and then you slide down and you have to go the other way.  It is frustrating for us because we end up getting confused and having to redo the turn because we went the wrong way.