Should i do it to my hair...?

My hair is curly, like ringlets (you can put your finger up one lol) but i want it straight really bad. So, i've been investigating a treatment called Japanese Thermal Reconditioning, and it looks pretty good to me. I have someone who can do it, and my mom said that she could continuously pay for it (i'll help though). The only problem is, that i'll probably have to let my hair grow out curly again, and i dont want to look like a freak. So... Should i do the treatment? Or should i leave it curly? It looks fine either way, i just prefer it straight. Opinions please, thanks :)