I recently switched from FL Studio due to the enhanced workflow in S1, which I love. However, one thing that really botheres me, is that the grid is really easy to get lost in.
Ableton and FL Studio do have an "easy" UI-solution for that, as they mark every 4 bars in a slightly different contrast. This in combination with thicker bars on the 1 would make it much more easy to stay in structure for everyone.
Hope that makes sense. Also really like this feature request, S1 offers :)