It depends on precisely what the problems you are experiencing are. There is no need to switch anything though. If you log in to your account and go to websites manager, then select the site to edit and then click the arrow on the right side of the Edit site button and select Edit with Sitebuilder plus. You can take a look there.
If you want to try our newest online builder, you can create a new site and take a look. If you want to see an example site, our current site spotlight is a good example.