Yes it has been done to death, but here's three brief pointers from my use.
1. Recently had to send mine MRX unit back as it developed a fault (plastic bit fell off) -got it back within 10days and they had upgraded and replaced the case for the newer design
. Excellent customer service, I liaised with only person who took personal ownership of the process.
2. It's a real eye opener (no pun intended) how much traffic is out there not transponding, I frequently visually identify Cessnas/Pipers within the range of the unit and no report on the unit at all.
3. It can be a distraction, you have to be manage the attention you give it, and be very clear on how to interpret the information.
Hope helps
