When I started working for a particular company, Siteground was their web host.  It didn’t take long for me to find out all I needed to know about that group.

Though not as bad in the uptime department as Mosso, Siteground’s servers did have a very frequent habit of simply going to sleep.  The site would go down for hours, the secure server certificate wouldn’t work or email would go down for no reason.  Plus they were charging more than they needed to for add-on services.