Umar Bajwa,
On Visual Page Builders, it depends on what you are trying to accomplish.
If it is strictly a landing page and has little to no impact on your SEO or drawing people to the site, then that may be a solution. Personally I would never use a visual page builder. The problem that you have with most visual development tools is that they DO NOT follow "Best Practices" and normally can hurt your SEO based on how they assemble the page.
This is normally not the fault of the tool, it is that the standards and requirements change so quickly the tools cannot keep up. If you are going to use the pages to act as Landing Pages and draw new visitors to the site you will want them to be constructed correctly to capitalize on that impact.
Most professional web developers stay away from visual tools as they tend to make the developer lazy and gets them in the habit of bad practices. There is just too much to correct on the page structure once the page has been constructed by a visual tool. And honestly, if you have the knowledge to make the corrections, why use the tool to develop the page.
As one example, go to any good University, see if the web engineering class professors teach or use Dreamweaver, or any visual tools in their web engineering classes. If they are worth their salt, they do not. It is a good tool for mock ups and rapid site build demonstrations, but would never be used by a professional on a Live site. Way too much overhead, wasted markup, file size issues, bad SEO practices, missing meta data, etc. Christ it doesn't even have all the new elements in CSS and HTML and those elements are already being evaluated for SEO.
Just something to think about.
