Be very careful ladies with weaves. Yes your hair will grow, but it can thin out your hair as well and cause breakage under the weave with extended wear. I wore weaves for 2 years. The first year, my hair grew really long and pretty. The second year, the weave was my worst enemy. I didn't realize it was my worst enemy until I took it out and decided to wear my real hair. That is when I noticed the damage.
Honestly as being pro-weave that I am, it requires more maintenance than regular hair. You have to wash it constantly, but when washing you fear the threads pulling your hair or even the threads (cotton) rubbing against your hair which can cause damage. I might not know this, but the threads could damaging hair strands that's braided because of friction. If I could turn back time, I wouldn't wear a weave, I would have acquired much more hair growth by going natural even if my hair was severely damaged. The weave limited my hair from Oxygen, natural sunlight and properly being able to rinse products from my natural hair thoroughly.
For those that insist upon wearing a weave, when I wore mine, I experienced about an 1" of new growth per month, but you'll receive that if you take vitamins and properly care for your hair. I find weaves to be a quick fix to have long hair or a style you desire you couldn't achieve with your natural hair.
Some problems you encounter with weaves from my personal experience would be:
-Smells from products because a weave can eat up tons of oil and moisture like no tomorrow lol
-Dry looking weave from the weave eating up soo much oil and moisture
-Tangled Weaves. I find that most, if not all Yaki tangles. What I did to ease the pain of feeling the need to comb my hair every 5 minutes was, have sewn in the back, 3-4 European straight tracks and on the top a very nice silky yaki. The mixture is undetectable, gives incredible shine and bounce. Looks like Yaki hair all over.
-Over a period of time, it will begin to get nappy or hard.
-Once you wash it, it never looks the way it did when you purchased it.
-When I wore weaves for some reason, I would always have to flatiron one side every morning.
Some might say it was the hair I purchased, but I brought them all. I got the custom blend from Barbies and the store on 23rd street (in New York), I purchased Sensational, New Premium, Milky Way, Outré you name it. I found New Premium to work best mixed with Milky Way European Straight because it was my exact match, it didn't shed and it retained its almost original look for sometime.
That's another problem with weaves, many shed. You'll have hair everywhere.