How secure is the VPN service?

Our VPN service is very secure and developed in-house. We do not log any personal data. We only log generated traffic in megabytes for the fair use system. As our jurisdiction is in Belgium, we are not forced to store or hand out any data, so we are not subjective to National Security letters or gag orders. We are not legally required to keep any logs and we do not use servers in countries, that would force us to (e.g. Russia or India). Should countries where we have our server locations ever pass such a law, we will discontinue the location.