In every activity you want to dedicate your time with, it means, you are interested with it. So if you want fun without wasting too much effort, then, this is not for you. You can always play on casino classics where you don't need to think about. But if you want a mastery of specific game like this blackjack, all the resources that are available, you will want to read and learn. It means, you can allot your time for this kind of activity and you are willing to know more than the basics of this game.
In each discipline or profession, the more time we spend on learning it, the better we will be. However, it must not be forgotten that gambling, including card games, is not only based on knowledge, but mainly on luck. So no matter how much time we spend to learning, there will always be the possibility of losing out to someone much worse than we. Of course, the better we are, the more we reduce the risk of such loss.
Not the card games but it was dice, limbo, crash and similar games that works in random are the ones that are based on luck but for the card games especially poker and blackjack, I think they somehow involved a skill. I saw someone plays well in poker and blackjack game, and I don't think they became good or pro at it only because they are lucky. So, the course that we have here can be a legit thing to make you good at playing blackjack.
The time spent in learning is not going to be wasted but as long as you are paying attention on the course but who wouldn't be when you know that this can benefit you at the end? But losing is still there, it's part of the game.