I consider myself experienced in all things aeronautical. Been flying since I was 15. Started in an Aeronca Champ in 1961. Flew RC airplanes and gliders for a while. Would never take a chance. However, I must tell you, actually confess to you, what happened to me just yesterday. I went out for a practice flight with my Phantom 3 Pro. Set RTH at 250 feet. Full battery. Then flew out to 1,700 feet in one direction and then made a 90% turn and went out a total of 2 miles. I was viewing in map mode, not camera. The battery got low, but no warning yet. So I decided to head for home. I hit the RTH button and sure enough I saw the little blue triangle turn toward me and head my way. The Pro then ascended up to 250 feet as planned. So far so good. I looked at the "instruments". It was coming home at 24 MPH at 250 feet. Battery getting lower now. But still no warning. But then, when he Pro was on course for home at 1 mile distance, the Battery warning light came on. No need to panic still have 6 minutes flying time before Critical Battery and I'm over a flat desert landscape with nothing but 4 foot high bushes. (Remember that!). At that point I decided to start a slow descent. No need to arrive over Home at 250 feet. Remember, I'm in map mode for viewing. Can not see what is ahead of the Pro, only its position. I let it descend for a while, but did not look at the altitude reading displayed in the app. So now it is on its way home at 24 MPH. I sat back to wait for its arrival. When it got down to about a 1/4 mile from home, I switched to the Camera mode for the final approach. When I did, what I saw scared the living Hell out of me. For there on my screen I saw bushes flying by at 24 MPH. I quickly glanced at the altitude, and was shocked to see that I was at only 6 feet. That right boy and girls, 6 feet. That was two feet about the bushes. It had been at that altitude for 3/4 of a mile at 24 MPH. I quickly hit the throttle and went back up to 50 feet. When I did, I saw the Pro in the distance pop up and over a very small knoll no more that 10 feet high. I was within seconds of a pilot error crash big time. It reminded me of a non-instrument rated pilot flying into IMC. The last thing they see is a windscreen full of trees. In my case, it was bushes, but I survived. The Pro was doing what I told it to do, and I nearly lost it.