Yes, basically, and many more, but I can't emphasise enough that everything spiritual advancement takes a lot of effort (just like physical stuff, like working out).
When I was a newbie, I thought that Satan will appear in front of me when I dedicate myself. This is (now) obviously not true.
It would be very hard to word exactly what benefits can it bring, as it takes better understanding. If you read the JoS, you should know what can the Kundalini bring for example. Don't forget that you have to work hard for every benefits, so it isn't just a gift (but many cause can also have multiple positive effects).
And it's just can't really be answered because, it just depends on what level you are on. If you manage to reach godhood, than it's already brought you so much benefits that it can't be written by words, and reaching godhood is just the beginning of something that is endless.
You may also want to read HPHC's recent sermon
https://ancient-forums.com/viewtopic.php?f=5&t=88968
And basically all of his and HPS Maxine's sermons