Actually it depends on your website service. But normally there are some points to make your site very quality.
01 – Make your website in userfriendly based on your service or product & consider the CMS.
02- Quality contents with user-friendly
03- Add some new features (Videos, slides and etc..)
04- Branding & Effective colour scheme
05- Clear call to actions
Mainly, these are will help you to make a good website with user-friendly. If you have any ideas please share it here.