[Solved] Discussing Ryze Tello Drone: First Impressions, Features & Brush Motor Concerns (Limitations)

Hello
I set up this topic to share my first impressions and possibly warn against this "perfect" drone. The drone reached me in 1 day, and after unpacking everything seemed like a premium product. The first firing no reservations, the battery charges in about 1 hour and lasts about 15 minutes (quite a lot). The drone has a blockage up to 10m higher will not fly which results from the vision system specifications. He makes nice movies and he makes really decent pictures. Unfortunately, I slightly disregarded the people who mentioned the brush motors as very emergency (well I did not expect that so). Due to the price of only PLN 440, there had to be cost cuts, and one of them are engines. After 2 flights, it turned out that at the 3rd take-off the drone had a lot of problems to hover by communicating in the application "take off failed" (even during manual take-off). Of course, there was also information that I had to calibrate the "center of gravity" I did it and it did not help. The drone took off to the very end, it took off strongly fleeing backwards and to the left. During the flight, however, there were almost no problems, and in the city center the range with honor 7 lite was quite good (deterioration of image transmission quality took about 25m). During the 3rd flight (skipping the test) with approx. 20% of the battery (well, around because the application on Android only shows the analog indicator) at a height of almost 9m, 3 of 4 propellers fell off the drone, and the drone fell on a hard surface, and it happened after about 10 minutes of flight. After charging the battery, the next flight did not take place, and one of the engines was to be ejected (the drone was not even an hour in the air). The good news is that I got a refund I add drone photos after the accident, unfortunately I can't paste the photo taken just a few seconds before the drone accident, because the computer for some reason does not open it at all or shows it completely blurred. I wonder whether to buy again and here a request to a person who has such a drone let them share their opinion, maybe I was unlucky.

To be honest, the specific drone is from PLN 2,000, for example DJI / Spark / COMBO. https://cyber-shop.pl/dji-spark/803-dji-spark-combo-maly-dron-z-kamera-1080p-bialy.html?Promo

I recommend the Hubsan H501S pretty good performance and quality,
requires horizontal and vertical calibration before the flight
I offer flight with gps iak and without gps - I do not recommend without gps.
When you search, you'll find an example

https://www.tomtop.com/pl/p-rm5060b-eu.html

I certainly don't recommend any toys with brush motors.

Now I'm a little out of the subject. Is it worth paying extra to mavica air? I am a bit afraid of the wind that the wind is blowing, and FHD may not be enough with the fact that it is over 1000 PLN cheaper, and on paper, apart from the camera, better gimbal and more powerful engines are not much different. The fact with brush motors is just toys. I get to something better, and sometimes I close the topic.

The fact that brush motors are still toys. Certainly in the future I will buy something for longer without brushes, and this time I close the topic. Thanks for the answers.