Whilst I wasn't sure about using a company whom you can't telephone for support, I must say i am very impressed with Squarespace.com I use it for 4 websites, it easy to use and look perfect. I'm not a designer but it allowed me to create what I wanted in a very short space of time. I tried lots of web design companies over the years and honestly speaking squarespace.com allowed me to make professional, clean, mobile friendly site. So dont waste money on agencies get up and running on this and once you making great money think about an agency.
