Ask HN: Are TestOut.com's CompTIA prep courses like Network and PC Pro adequate?

After 10 years of personal tinkering and customer service jobs that, while have not been bad I have also not enjoyed all that much, I have decided to pursue some technical certifications, starting with CompTIA's A+ and Network+ to switch my career track to the IT sector. I have access to TestOut.com and their prep courses. I understand they are partnered with (possibly owned by) CompTIA and I wanted to see if anyone had used them before to get their respective certifications and if their material was sufficient.