Customizability, flexibility, and you have to host your website on their servers – you can’t download it and host on another server like you can with UltimateWB.
Got a techy/website question? Whether it’s about UltimateWB or another website builder, web hosting, or other aspects of websites, just send in your question in the “Ask David!” form. We will email you when the answer is posted on the UltimateWB “Ask David!” section.