Is there a 3D plane under $300?
Again, the Sig flies great. It will do some 3D but if you want a plane to throw all over the sky, the Lanier would be a better choice. I love Extras for sequence flying (just ordered my 6th Extra yesterday), but I was impressed by the way my buddy Dale (Otter on RCU) flies the Lanier Edge.
If you want a better IMAC machine then the Sig will work very well. If you want more 3D capability or would have a tough time transporting the Sig's one-piece wing then the Lanier would make a great airplane. Either would be a good choice, and a good value for the dollar.