Some of the courses I already owned purchased through other "bundles", however most of them I did not. There are half a dozen alone that are superb enough to justify buying entire bundle. I DO have a couple of minor complaints however, (1) If you are going to sell courses to a country like the USA where ENGLISH is still the national language you should ensure that authors submitting those courses have someone edit/translate SYMBOLS and language into ENGLISH. I noticed some authors using French as well as German symbols/language and Spanish . If you DON'T have translated language versions in English you should so clearly state as Fritz DVD's do. Some authors do a GREAT job of providing LOTS of "extra's", very well annotated games, clear & easy to understand for mortal human beings, Pdf's etc. One for example is Anna Rudolph. I would buy and recommend any and all of her courses. There are of course many others I like. Some authors are obviously just "cranking out another course for sale. The amount of effort they put in their work can be readily ascertained by the fact some authors only provide "simple PGN's- games that could be readily downloaded from a database with NO ANALYSIS, comments or anything else. Some authors give COMPREHENSIVE material with their courses like KARPOV ! Really liked his material. Sammy Shankland is doing great in his courses as well as Vellejo pons, Mihail Marin etc.It will take months to give a fair evaluation to all the authors, it took me 2 days just to download the files!

I have bought this for a very low price and the content is just great. For every level there is a master that will help you with your chess progress. Anna Rudolf and Simon Williams are my favorite teachers and explain things very well.

I bought the megabundle at a discount about 5 months ago and have been lucky enough to have had the time to go through about 1/4 of the content. For a 1500 level player like me there is just sooooo much useful information here. To start with I've tried to concentrate on the area that I felt was my biggest weakness (middlegame) so I glanced through most of the courses pulling out the chapters that looked most relevant. Some had to be parked for now as the content turned out to be too advanced for my current level (which is a good thing for later) but the bazillion that I have watched so far were very informative and gave me a lot of confidence going into my most recent tournament, where I felt comfortable against much higher rated opponents. Now onto the more advanced middlegame themes, plus the videos on the other areas (tactics, openings, endgames, tournament prep etc.).
Obviously these videos are not magic, in the sense that the knowledge will not just jump into the viewer's head just by watching them unthinkingly, but if you are prepared to pause them frequently and think critically, e.g. guessing the move and then observing the move played and listening to the presenter's comments, this pack is an absolute goldmine of instruction.
There are a range of presentation styles, some more serious and some more jocular, some where there are fewer examples but the points are made with crystal clarity and others where you get more examples than you can shake a stick at - it depends on the viewer's preference but I would have thought that most students are going to find multiple presenters here that are on exactly the right wavelength for them.
Overall, I think that given the range of topics, target ELO levels and presentation styles, this pack offers a fantastic opportunity to the serious chess student. So far I have found the courses challenging, but also fun and immensely rewarding. If you can combine this pack with analysis of your own games e.g. with the help of...

My rating is in the mid 1900s. This entire package is awesome. It's hard to know where to start, and which method to start with. I did the Nigel Method already, and he was awesome teaching that tactics can come from the most simple positions. I am doing the Atalik Method now, she is gets better and better as the lessons go on and I've already picked up some pointers on the IQP. I do the Susan Polgar method while working out, this method is really well organized and super easy to follow.
I want to thank ichess for selling this to me. this is one of the best gifts I've given myself. I like this type of video better than chessbase because I can take this with me on my tablet and play it whenever without having to install a chessbase reader, which is not amazon fire or ipad/phone compatible. I also like these videos better than what chess.com has because I don't have to have an internet connection to play them. This helps during kids karate and swim practices!
I would prefer that each method have a suggested skill level though...

I am a 1500 rating player. As a beginner, I think this series are somehow hard to digest. Some of GM like ginger GM (my favorite), Anna Rudolph, Lilov, and Susan polgar are easy to follow and cover various topics and help me a lot on some fundamentals. Others are more for advanced players and I watched some but could not folLow all the way.
I got it at deep discount. For sure it's a great deal, I just did not have time to watch all these videos. I may come back to watch them later when I get more experience.
Another feedback is each method usually covers too many topics and each topic is not deep enough to help me to fully understand.