I think that the major argument of vendors for HCI, the management simplicity, is a big lie.  Typically, companies don´t have dedicated teams to every infrastructure component - unless you are a giant enterprise or a tech. company The great number of things that must be…

You should consider HP Simplivity.  While Dell Vxrail is the typical solution, HP Simplivity can fit well in various cases. Combined with Green Lake it can bring flexibility e cost savings.  But first, be sure that HCI is the right choice.