The ability to use cloud services such as AWS or Google Cloud Platform for infrastructure without having dedicated servers that are constantly being upgraded by my competitors (and sometimes their employees). I can't think of anything bad at this time! It's easy enough to learn how it works but requires some knowledge about networking and security protocols if you're not familiar with them already. There was no cost involved when we started using NSM hostings so there wasn't much risk associated either. We've been able to save money while increasing our productivity because all production environments have access to reliable resources 24/7 through Amazon Web Services which saves us from spending more money on hardware upgrades every year.