Wordpress: SiteOrigin Page Maker

I have a doubt about SiteOrigin page builder whether it is good for SEO. When I'm analyzing my content via different keyword density checker online, they gives different word count in my web page. Some shows 1200 words and other one shows 2300 words but actually it has 2550 words.

And with http://textalyser.net/ shows words in the codes too (see the image).

What you guys think? Should I change page builder?

Hehehe no, this is due to faulty word counting scripts. What's happening in your screenshot is that it's showing the CSS styles that are added to your page.

They're probably lazy using nothing but the strip_tags function. I'll need your website to make sure, but judging form your screenshot, they're counting everything.