I am curious about Botox reviews.

I am curious about reviews regarding Botox. Now that I am getting older, wrinkles have started appearing on my forehead and between my eyebrows. I didn't realize I was frowning every time I spoke until a friend told me about it. If the reviews are good, I would like to get it regularly. Are forehead Botox and frown line Botox administered separately? I am curious about the effectiveness and price. I am also wondering about the treatment frequency. I assume that once I start, I will have to get it consistently, right? I am also worried about whether my facial expressions might become stiff or look unnatural. Since this is my first time, I would appreciate it if you could also tell me about choosing a clinic and precautions. I am also worried about Botox side effects. The benefits must outweigh them, right?