@Ayam onthe Farm I have never had guineas, but we do have tons of land and the perfect environment. Honestly, I have heard tons about their flightiness and noise issues, but even though they sound terrible pets I am only keeping them for tick control (lone star). They are the only things that might help stop ticks without chemicals. I am willing to make the trade off for loud and skittish guineas than getting 40 ticks on me when I walk outside
Guineas aren't so bad. They definitely are not "pets" and they have a very distinct personality than chickens. They certainly are loud and not nearly as friendly as chickens. However, if I may make a couple suggestions about raising them, I think you will be happier with your guineas. I hope you are getting at least 10 of them. Guineas are flock birds and are only happy in larger groups.
First, do not raise them with the chicks. Guineas raised with chicks think that chickens are the same kind of bird as they are. This turns into problems as they get older because guineas are very aggressive birds, and they will turn that aggressiveness on the chickens also (chasing, bullying, pulling out feathers, etc.). If you raise them separately, they are far more likely to just ignore the chickens.
Also, spend a lot of time with them. I never end up handling my chicks very much, but I do spend a lot of time with them. As the chicks get older, I enlarge the brooder so I can walk in it to add feed and change water, so they see me. I will sit outside their pen and watch their antics. That sort of thing, so they see you every day. They will be much calmer around people then. Probably not coming up to you sort of friendly, but at least they won't squawk and fly away when they see you.
Finally, wherever you want them to be as adults, get them moved to those quarters as young as possible. It takes them several weeks to imprint on a location, and it can be tedious to move them as adults unless you keep them completely locked in (but then where is your tick control?)
I find guineas to be very independent and opinionated birds, but they also amuse me. Check out the forum for guineas here on BYC for more information and help on raising guineas.