After flying the Phantoms for a while I really wanted to try the Q500 due to its size and most of all the ST10 ground station, I got sick of having to hall my tablet's around to fly. I got a good deal on used Q500 4k at Adoroma. I had to have them send out new batteries the ones they sent had bad cells so didn't get to really put it through good test. I have to say its a little different from flying the phantoms didn't seem as responsive I'm pretty sure it was the bad batteries. I called Yuneec and have to say I was impressed, got a call back to me in less than 15 MIN, I told them the drone was used and what the flight was like and he gave me recommendations on what to due when I get the batteries in. Never really had to deal with DJI customer service phantoms and aspire never gave me issues,but every one I know that had to were not very happy. I would be interested to know what do use to clean motor I have the storage covers for the motors coming, I also was not happy with the gimbal mount it would not lock the gimbal down to my liking so I ordered new one from Carolina Drones with a few other things got them in two days They are awesome to deal with .Long story Longer Just wanted advise on what to look out for with the Q500 4k.