I do not use the default views path (mysite.com/og) for the group listing. Instead I use mysite.com/groups. So far I haven't run into too many issues, however I did find that when a user creates a group join request and then goes to delete that join request, they are redirected to a page not found.

I found the following in og.module:
$links['delete'] = l(t('Delete request'), "og/unsubscribe/$node->nid/$user->uid", array('query' => 'destination=og'));

That destination string appears to be the culprit. I was able to work around this by adding a URL redirect from /og to /groups.