I've never tried AeroFly, but it sounds great from what I'm hearing here. I DO have Realflight......bought it about 4 years ago....since that time I've upgraded to G2 and added the 1st 4 add-on disks. I still use it regularly. The one thing I really like is being about to have online flying sessions with friends, or meet new flyers. I don't know if AeroFly has this ability, but if it doesn't, Realflight might be worth the extra money.