For the danish brand Innovation Sofas I have developed a mulitlingual webshop for the german market using Drupal Commerce. This includes a facetted Search page and a customized product configurator.
Using the huge number of available modules and configuring right way will get you very far...
These are some of my favorite must have modules:
- views
- rules
- page manager
- panels
- organic groups
- context
- feeds and feeds tamper
- profile2
- token
- i18n
And for the admin area:
- admin menu
- devel
- backup & migrate
- features
