I agree with some of the above... It's well worth investing the bulk of your cash into the gear to support the drone rather than the drone at first; basically try to have as much of your investment with you on the ground, not up in the air as...because it's likely you'll crash as you learn...
I'm fairly new to this (4 months) and I've tuned this as far as my ability will allow. What do you make of the tune? Are there any tell-tale signs of oscillation, prop-wash or poor ability to hold angles steady, and if so; how would you suggest I improve the tune?
The video is here...