UptimeFlare / StatusCake Flare

Hi.
Has anyone used Blackdotsh Uptimeflare or Statuscake-Flare and have any reviews?
I'm looking at implementing it in a failover solution - as it will be a lot quicker to failover than DNSMadeEasy and such.

Main issue I have, though is I want 4 sites in the code.

Anyway if anyone has any reviews, LMK. I sent an email to Blackdotsh but no reply.

FWIW, here's my question:

Since Cloudflare technically hasn't got "www.domain.com" and such - shouldn't this bit:

$CF_domains = array( "google.com" => "8.8.8.8,1",
        "www.google.com" => "127.0.0.1,0");
be
$CF_domains = array( "google.com" => "8.8.8.8,1",
        "www" => "127.0.0.1,0");

Also, I'm attempting something a bit tricky so I have:

$CF_domains = array(
            "google.com" => "123.456.7.8,0",
            "www.google.com" => "123.456.7.9,0,1"           
            "sub.google.com" => "123.456.7.8,0",
            "www.sub.google.com" => "123.456.7.9,0,1"
        );

This should still work, right?