Webstarts is a great website builder for beginnners/intermediate. It's growing fast and has a great platform to build on. The drag and drop editor has many features and allows you to place content anywhere on any page, unlike other drag and drop editors that have fixed content locations.
My only negative mark on this site is that they will nickel and dime you to death. They charge extra for most features that others consider basic. When you upgrade, don't bother with the Pro plan. It's completely pointless, takes your money, and gives hardly any extra features than the free plan.
Go with the Pro+ plan that gives you more. You're still going to have to pay more for things like a shopping cart, website statistics (used to be free but they make you pay now), and some other features.
Overall a good editor, but still has room to improve.