We used Covenant for one year with my oldest daughter and didn't like it at all. I like what they had to say on a lot of different topics, but when it came to the material it wasn't that great. I loved reading their statements of faith and learned a lot from the site.
For one thing, they covered a lot of subjects. I believe it was like eight subjects per day for grade one. That was a little much. They also used Bob Jones and some other curriculums, they pull from a bunch of different sources. It wasn't their own curriculum and it didn't seem to back up theologically what they were stating as their belief statement. I thought there was way too much busy work, all of it was work book based. I don't like the work book approach. There is a place for workbooks, but not in every subject. I found it was very hard to teach, the lesson plans were not well laid out and I didn't have the confidence at the point to do them on my own. I was spending around 6-8 hours a day for first grade, who has that much time for one kid? I don't think it would be a good fit for multilevel teaching. It really confines you to one grade level. I do as much with all four of mine at the same time as I can.
After one year of Covenant I switched to Sonlight and that is my favorite curriculum. I found I really prefer a literature based curriculum and Covenant didn't meet that need.
Wife to Brad
Mom to Austin, Taylor, William, Leah and Julia
"I seek an inheritance incorruptible, undefiled, and that fadeth not away; and it is laid up in heaven, and safe there, to be bestowed, at the time appointed, on them that diligently seek it." John Bunyan "The Pilgrim's Progress"