Another update. My balloon is back now (not sure what time it came back as I could not play last couple hours. I have another trade to do. You get one ticket each trade and then you can redeem the tickets for a gift. Gifts cause 10, 20, or 45 tickets. You choose which one you want to buy. It shows on the box what could potentially be in it, things such as gems, tools, and something with the balloon. The higher priced ones have better gifts such as potential for 10 gems in the 45 gem box.
Also, with the trades, while you need at least 2 of each item, after that you can do whatever else to fill progress bar. It also takes into account how easy or difficult the item is to get and point values vary accordingly.
Hope this helps everyone and hope it is out of beta soon so everyone can enjoy it. I really like this more than train, as long as you start a trade when you have some time since it's a 4 hour collection limit.