I had more than 20 flights on my F2 so far. I was able to finish whole Master sequence with this ~$45 ARF, that really surprised me (although not so solid as my 140-size glow powered patternship).

I put ~$250 to upgrade power and some modifications, but still, much cheaper than a standard 120-size engine plattermship.

My F2 is powered by a Himax 3516 outer runner brushless (350W), APC 11x7E, 3S 2100mAh/16C LiPo, weighs 34 Oz.

Modifications:
1. Power upgrade to 350W
2. Replace the landing gear struts. Old is 2mm, new is 3/32" (~2.38mm) in diameter.
3. Enforcement of two elevator halves linkage so they won't twist in high-G maneuvers.
4. Add supports in mid of each push rod to reduce control tolerance.

In my opinion, the modified F2 is very competitive and up to the Intermediate class....... and it is cheap!

Overall, the F2 is a good aerobatic plane for entry level.