Has any done both Brazilian and Japanese straightening?

[persa]

(Edited post for better question clarity but can't edit title.)

Which have y'all done and what did you like/dislike about it? If you have done both, which one did you like better? Or maybe a better question is what we're the differences between them.

I've been doing Japanese for years but the last time I did it was Feb 2012. So it's wavy again and I gave it a shot but I've decided I want to straighten it again (I can't deal with the upkeep for curly hair) but I'm undecided if I want to try the Brazilian this time. (run on sentence)

Any opinions?