If you're a fan of Flow, you should like this. There is a Cross in each level. In the first diagram, you can see the blue goes straight through the cross.
I'm not a fan of Flow because I can often make all the connections without using all the squares in the grid. The same happens in Draw Line: Cross. I did 'Regular Pack 6'. It has 150 levels with grid sizes from 5x5 to 9x9. I was forced to do all the 5x5s before moving on to the 6x6s. The small sized grids are way too easy.
I was looking forward to the 9x9s. Unfortunately, they were too easy too. The whole set of 150 probably took about 1 hour which includes a snack break.
Still, young puzzle fans should really like this. Serious puzzle fans: skip it.