Some sources state that 25% of the websites using content systems are using WordPress. Although started purely for blogging, now you can create amazing websites for any vertical using pre-made themes and templates. The advantages of WP is a huge community (that works to improve the product), and large marketplaces to cater for plugins, designs, technical help and much more. The learning curve is not too steep, but possibilities are endless.
Free Website Builder US
Gator Website Builder has more than 200 templates that are professionally designed and available for free. And yes, all of them are mobile design compatible. You don't need to do anything to activate the mobile design. Gator does allow you to edit the content in your mobile version without affecting the desktop version. Editing content on the mobile version can be handy if you have special mobile-only sales or if you want to optimize the experience people have on their phone.
It’s a solid website creation suite accompanied by a decent online store. They allow website creation from start to finish using their iOS and Android apps. Another positive thing is that email accounts are integrated right into the core product and quite affordable ($12 per year per inbox). All their templates are fully responsive and display well on desktop and mobile devices.
This is a great review post on website builders. I have tried some of them myself but most of them were hard on the budget and too clunky for me to actually use. Weebly and Squarespace did have what I was looking for but decided to abandon them for lack of time. The customer service on most of these is pretty bad (except the top3). I was actually going to do a review on most of these website builders myself but you’ve done a good job here.
I manage a running club. On the advice of a pal, we used Drupal to develop the club website. This went well enough when my pal managed the Drupal site, but when he got too busy, the thing became a nightmare. Our club management (a handful of runners) ended up spending an inordinate amount of time and money addressing Drupal updates and hacks and technical stuff that was far removed from doing what we loved and were good with (managing a running club.)