This is just a two lines of CodeLet which allows you to redirect your users after they log in to your site. This not complex and super quick
CodeLet
<?php
/**
* Implementation of hook_user_login
* @param unknown $edit
* @param unknown $account
* @author DrupalD <http://twitter.com/DrupalD>
*/
function myformchanges_user_login(&$edit, $account) {
global $user;
$_GET['destination'] = 'user/'. $user->uid .'/dashboard';
}
?>