I was relaxed many years back then I loced for 3+ yrs, chopped, went natural "loose", straightened/flat ironed often. I was just past shoulder length. I thought it would be better to relax than to use heat weekly. I relaxed in Dec06....regret it. I'm now a little past APL. Last relaxer was 31Oct07. I'm transitioning back to natural now.
So yes I did, but I didn't last a full year. It's not that the relaxer damaged it or anything. My hair is pretty healthy thanks to LHCF and a great hair dresser. It's just having dealt with both, I really prefer my natural texture, 4b that it is, over relaxed. I like and miss the versatility of it all.
Wanted to add that gaining and retaining length didn't seem to be affected by wether I was relaxed or natural. My hair grew well in both states.