I've ordered two SRD 370's as well as replacement parts as well as parts for upgrades. Everything arrived within a week in perfect working order. With all the complaints about defective parts, they send out a lot of stuff there are obviously going to be a few defective parts. It just seems that people who have a negative experience are much more likely to post a review. I couldn't be happier with helipal, they've answered all my emails quickly and in great detail and the drones I purchased are amazing.