I really like this product. I have all the airframes except the trainer. Bought almost all of them when Tower had them on sale for $20. Bought a couple zeros for the kids when they went down to $10. Only issue is I would like to get another power core and can't. I just checked and don't even see them on eBay. It's also hard when people jack the prices up 2 or 3x the price just to take advantage of them not being produced anymore. I'm not going to pay those prices. I'll be glad to pay a discontinued price but not regular or inflated price.