A2 is a host we keep re-evaluating, but it consistently performs under par.
The "20x turbo" is indeed a gimmick, and we do not like gimmicks, and that's one of many things currently working against it being better ranked. Those servers simply use CloudLinux, which is why PHP can be changed in cPanel, why PHP is faster (mod_lsapi), etc. It's really nothing special. If anything, it means their "Swift" servers are vanilla Apache servers.
InMotion simply continues to perform well in many areas. I wish our long-form reviews were already on the site, because then you could see how different it is.
Aside from
InMotion, you also
Veerotech and Stablehost. But InMotion is still best.