Is this reliable?

I found a good website to learn grammar from, but is it good to learn? could someone brouse this website, and give me a review? 1-10; 10=best http://www.guidetojapanese.org/

Konnichiwa!! It's pretty good I'll say! :D *Tanoshiku benkyo shite kudasai.* _May you enjoy learning Japanese._

How does it compare to your grammar lessons? yours seems easier (and possibly equal on a qualitative scale), but this seems more in-depth, which is better?

Konnichiwa! Our grammar lessons teach all the basics that you need to know to acquire a deeper understanding of the Japanese language as well as for you to grasp how a Japanese sentence is composed. If you are enthusiastic about learning more Japanese grammar (other than that taught by our Grammar lessons) I would recommend you plunge into other advanced grammar lessons. :D