Anyone use Grammarly?

[MrsMargoLeadbetter]

I have posted before about my challenges with proofreading! I do use a proofer on most client work, but I would like to check my grammar use (particularly commas) in my emails.

Has anyone used the paid for version of the online grammar checker 'Grammarly'? Is it worth the money?

TIA

Ooh I dunno, it's American innit?

I just put a chunk in and it says there are 8 errors. There aren't... Of course, now it's really bugging me and I'm reproofing... but there aren't 8 errors.