I heard this opinion before.. but I also speak Hungarian from birth and a tiny bit Japanese (out of hobby). English is rather simple. Not as simple as Esperanto mind you, but simple enough (comparatively) that it beats most alternatives that don't try to bootstrap something new. Also, Hungarian has a lot of rolling "r's", so I wouldn't complain about English in this respect ever.. really.

Esperanto has it's perks though, so I do encourage you to learn it. It makes learning other languages that much easier and the community is nice and global, though somewhat eccentric. ;)