Only downfall on a 4 stroke is the cost of repair. I put a 91 surpass into the ground upon takeoff 5 feet off the ground and the cost to repair it was $175 in parts alone! Thank God Tower Hobbies fixed it for me for FREE.... They said....Courtesy of Customer Service.

Other than the cost for repairs, you can't beat a 4 stroke.

I wouldn't recommend any 4 strokes for beginners if money is an issue.

Edit....

Where as I also put a super tigre .61 2 stroke into the ground at full speed straight down and only ended up replacing the propellar and the needle valve. About $20