Just tried the first lessons, and I think the idea is excellent ! You can't find much stuff on this topic, yet it's extremely useful from a practical point of view.

See you in a couple of weeks for a complete review

Unique course! It is very timely given the general interest in the latest Silman book and recent video courses. I have one suggestion, which is directed more at the site, could there be a front-page alert for the chess mentor lesson of the day (much like the video of the day)? It could even be set to cycle a random series if there isnt a temporally new one. Notices on the main page likely drive more clicks. Maybe even free previews for non-premium members.

I liked this and it goes well with common mating patterns you should know articles.  As you get better at defense your attacks get stronger as well. 

That's a great little course.  I blew through it in about a day and a half, but enjoyed it a lot.   A little different spin than anything else I've tried.   Have the feeling that it contained a lot of very personal experience over the board.  One suggestion?  There were several times when I worked something out that seemed logical to me and would have appreciated some feedback on why what I was doing was a dead end.  I know it must be incredibly burdensome to try and come up with an explanation for why every off the wall line an amateur comes up with is flawed, but that's pretty much why we're doing the courses, rather than digging through a book.   Again thanks, and looking forward to more of your work.

OK, here is an example from Simplify and Win.  The correct answer involves a queen sac on f8 and then the bishop swings to b4 giving check and killing black's queen with the rook on b2.  Elegant and logical.  An amateur like myself though, thinks of pulling the queen from d8 to g5 with the idea of blocking black's queen check.  A sentence like "Yes, this will prevent checkmate, but you will lose a pawn on f3 and black doesn't have to trade queens; try something more forceful." would be a nice addition.   There were only 2 or 3 of these in the course and I doubt if I'll find the others.  Hope that helps.

Error in "Save the last dance".  The white queen sacrifice that results in stalemate?Qg7 is considered wrong: "oops, there is a more forcing move out there".  Qf7 is the only move accepted.  Sorry, but Qg7 is just as accurate.  Black must capture to get out of check leaving white with no legal moves and thus....stalemate.   Of course I found this while reviewing old lessons since I'm too tired to try a new one so I could be wrong.

Yep, I had the same experience, as related in the DEF015 post

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Oops! Sorry about that, Hicetnunc.  I missed your post.