Does anyone use Amazon EC2 platform to host 50-10 WP/Joomla websites? If so, what type of instance do you use or recommend? M4 seems a little bit of overkill. T2-Medium or Large looks like a good balance. The sites will all be relatively low volume, maybe a couple of ecommerce with limited products (dozens). Cpanel/WHM & WHMCS will also be installed to manage things. Any thoughts appreciated.