/diy/ - Do It Yourself

I saw this browsing the other day and want to build one like it, basically the biggest motor you can reasonably fit on a small frame. It's my understanding that even though it has heavy motors it would be responsive even with heavy very high pitch props because of the high torque, what's the flaw to a build like this? I already have a very lightweight 5" build on a similar frame with 2207 motors and I just want to have different quads for different moods. What should I expect? Do I need a giant 50A ESC for a motor like those 2507s if they're spinning 5" props?