Yep, I liked it a lot. The Guides appear to be a wealth of information, not just for teaching/learning but also for understanding child development. I ordered the Kindy package. We'll see how it goes. I'm a bit nervous about all the reading I have to do, but I'm excited too.
I didn't get a chance to check out the GR1 package though, and realized after my 5 days were up that if I'd wanted to, I'd have had to do it during the same 5 days I was looking at K. Oops.
As far as I know, you can order pieces here and there without ordering the guides. However, unless you order the Foundation Guides you won't get access to the online family support group. And to get access to a grade-specific online support group, you have to order the package for that grade.
I know some people have liked the Enki philosophy but have had trouble putting together a day-to-day schedule. The founder has been working on addressing that concern, and has developed some new materials to help parents with scheduling. Package owners get access to these documents online, and I imagine they'll eventually be a part of the printed and electronic versions.
LMK if you end up ordering!