I've been in the business 30+ years and have been with many different hosting providers over the years. I came across Site Ground serendipitously and haven't looked back. Not only do I host my company with them but host most of my customers with Site Ground as well.
By far the speed of their servers for Wordpress is outstanding and outperforms the household names we all know. Their service is impeccable and their support is well knowledgeable in the area of your issue.
I have colleagues from Web Developers and IT Consultants that have introduced to Site Ground that now use them.
Thank You Site Ground
Mark