i flew my x-cell 30 stock for a month before i put an os 50 in it. now it does anything my extreme can do. it all depends on what you want to get out of it, and with that machine there's room to grow if you choose. i'm going to sell mine only because it's easier to keep an extreme in the air if you have 2 of them to swap out parts and there are only a few parts that the 30 shares with the extreme.