RWR is almost useless for me ATM because the symbols are basically sitting right in the center unless at very great distance.
The radar also suffers from a couple of problems, mainly the loss of contacts that fly below/above you since we can't control the radar antenna yet, and a bug that causes contacts not to show up despite the radar picking them up. The latter problem can be fixed by pressing the radar lock/unlock key. If you lose contacts when trying to transition from TWS to STT make sure to point the A/C towards the enemy in relation to altitude.