TopNotch wrote on 05/23/20 at 21:15:06:
My answer is who is Tillis? Yes Lenderman's name is in the title but it is not clear to me how much input is his. Everything is presented by Tillis and that makes me a bit suspicious, he also has a similar collaboration on chessable on the Alekhine Defence this time trading on the name of Dzinzichashvili, lets just say I wasn't impressed.
He's a National Master in the US at least. His input probably was by far the biggest, but I think Lenderman provided some analysis on the Classical and the Tarrasch.
While I understand the skepticism,
Master the French Defense is actually one of the most popular openings courses on Chessable, with more than 900 users on the Leaderboard right now. I see a couple of reasons for this:
Firstly, Tillis is very generous with his time in responding to questions and adding lines whenever someone feels something is missing. He even added two full chapters on the Winawer because someone requested it! The course used to give the Classical and the Rubinstein against 3.Nc3; now all three main lines are there. So whenever a major hole is found, it's likely to get plugged in short order on request.
Secondly, he doesn't pretend it's a repertoire for titled players: The course is only officially recommended for players up to "Intermediate" level (meaning up to 1800 according to Chessable). There are plenty of courses on Chessable (not to mention books and products from everyone else) that pretend to cater to a too large range of players.
I actually think the upper limit of 1800 is a bit too modest; I have the course and use some of the lines myself. Though admittedly I mostly play the French in blitz. Anecdotally I remember seeing a complaint on Eduoard's Chess24 French videos that a dangerous quick h4 line in the Classical Steinitz wasn't covered. After some database research I concluded that the best move order to neutralize the line was the one already covered by Tillis and Lenderman in
Master the French Defense.