I have an LX9000 (superb instrument) and a Butterfly display. Both display Flarm info in various ways and the LX9000 also has a voice module. Occasionally the voice info is useful. However, the software does not seem to make a good job of deciding when to give a voice warning, and the voice process is too slow for a real threat. On the other hand the warning tone from the Butterfly is used much less often and only when it detects an imminent threat. I think it takes a fraction of a second to take in with peripheral vision the clock face display indicating the direction of the threat, almost simultaneously scanning outside the cockpit. Other than for immediate threats I like a radar display to show me how far away a contact is regardless of the scale set on my moving map. I would choose to have a Butterfly display or Flarmview rather than relying solely on SeeYou Mobile or LK8000.