Hi Osclass Wizards,
thank you for the nice theme!

I have tested it briefly, and here are my observations/tips (tested @ 3.5.6, which is practically the same as 3.5.3 for all things that matter):
[1] I see that javascript/ajax code is removed from the theme. Since it is Bender-based (core), I wonder why? Auto-Complete for locations is absent this way.
[2] Some issues on mobile devices (Android 4) and front page. Cannot select category nor location from dropdown menus. Maybe a simple CSS / touch area issue, did not have time to investigate in depth.
[3] Some PHP notices (not present with Bender theme):
PHP Notice: Undefined variable: admin in oc-content\themes\osclasswizards\loop-list.php on line 67
PHP Notice: Undefined variable: class in oc-content\themes\osclasswizards\loop-list.php on line 41
PHP Notice: Undefined variable: admin in oc-content\themes\osclasswizards\loop-list.php on line 67
PHP Notice: Undefined index: items in oc-includes\osclass\core\View.php on line 66
[4] No translation strings - hard-coded english language in loop- pages. This should be converted to translatable strings.
[5] You should consider submitting your theme into
Osclass Market, this way users will see it in Admin Dashboard, get the ability to auto-install it, get notifications about updates and auto-update it once the updates get available.
All the best,
Regards