Wish I knew about this game a long time ago but it is what it is. So far i fill thisbgane is very fair in getting energy, credits, and leveling up. I'm sure it will drop off quickly though. But my one and only complaint as a F2P person is the shards from missions being random. It sucks when your trying to get a character but you only get 1 shard or no shards before you do the max amount of missions. The game already slow you down with the energy consumption so why make them random or a pretty low chance? It's really the only thing kind of putting me off of the game. Besides that, the deals and what you buy are pretty fair as well, expensive but you do get a lot of stuff.
I guess my next question is how should I be leveling? Should I put time into my starting characters or save my credits and training droids for later? What can I do to make the grind a little more tolerable?