My Q500 had burnt a motor andof sent it in for repairs and was sent what looks like a "new" Q500 instead. You might say I'm lucky to get a new one? Except prior to sending it in I had an extended range antenna setup that cost me over $500 on my unit that is not on this new unit. And YES, I am aware that Yuneec does not do modifications. After sending it in I did not get a response from them till three weeks later. They called to get more information and to check for my approval for the cost of the repair which will cost me $49.95 for the one motor and labor and $100 for return shipping back to me. I approved the repair and cost and was told that I would be contacted with tracking info once the repair was done. Got a call within the hour saying the repair was completed and my unit would be sent out soon. After a week or so of waiting I had not received any tracking info to see when and where my unit was? So I called support and after 20 minutes or so I was told that there was an issue with my card for payment. After a few more minutes csr tells me they were able to get my payment to clear and that an email will be sent to me with the tracking. Waited a couple more days and still nothing. I called back and again after nearly a half hour later was told the same thing, an email will be sent to me with all the info. Another few days later and nothing. Called again and round 3 of the same promises of an email with all the information I needed. Finally after another couple of days I finally get the email with parts, repair and tracking of my unit. Finally I get it and noticed something different. I pull it out and realize that it's not my "original" unit because not only was there no antennas I installed underneath, my gps tracking device as well. Also, as I mentioned this unit looked brand new. I call support back to inquire what happened to my original unit? I kept being told over the course of four days that someone would get back to me regarding the matter and nothing. So I keep calling back and seem to keep getting the run around and start losing my mind and confidence in Yuneec by this time. After several calls later explaining my situation and especially my concerns about my antennas, I keep getting the feeling that Yuneec doesn't seem to want to discuss with me about my antennas or admit whether or not they lost my originl unit or not because of the way the csr's I've spoken to sound while talking to them. They sound as if they're agitated and not interested. Finally while speaking to a csr I am asked to submit proof of my purchase for the antennas, and I do. A couple days later and still no response so I call back. Asked again to submit proof of purchase, and I do. Another couple of days and still nothing, so I call again. This time I am told that the csr's I sent my proof of purchase to were not working and would not be back to work for a couple days. So here I am, venting coz I'm losing mind and my confidence in Yuneec. I know this is long and thank you for hearing me out. My whole take on this is that when a customer sends a unit in for repairs, is it wrong to expect to get the "SAME" unit back in its repaired state? Especially if you spent x amount of money on modifications to the unit. And tho they informed me that they don't work on modified units, shouldn't they have refused to service it and return it? And also considering the trade, wouldn't you think that perhaps Yuneec would/could find skilled tradesman in the field of their products to refer their customers with modified units to have repaired if not hire employees with the knowledge to do the repairs? It seems like they don't do repairs, instead they just send you a new unit. Anyone else had this experience?