Should I use weebly to build a website for my new small business?

[me :)]

I've used weebly in the past, when I was in college and had to build sites for a class. Since I already know how to use it, I was thinking of using it to build a site for a business I am starting. Should I use weebly, or another web page builder? I don't know much about building a website, so the ease of use is important, ans is one reason I was planning on using weebly. I know search engine optimization is important. How is weebly at SEO?

Another reason I was planning on using weebly is so that I can change content frequently. The business I am starting is photography related, so a gallery that I can update with new work is important.

Also... about hosting the site, should I purchase a domain name through weebly, or through another site? I'm clueless about this part, so any info you provide would be appreciated.
Thanks!