I ran Emperor after I ran Ascended Mogul stacked with Rebirth. While the effects of Asc. Mogul were fast and the effect of Rebirth were almost immediate, it took me a little bit over 2 years to notice obvious effects of Emperor. But those effects are deep and keep on getting stronger. I believe that it all depends on where you start from. I was the furthest thing from an Alpha male (and I still have a long way to go). The sub had more work to do on me than on anyone else. I should also factor in the fact that I spent a whole year working from home because of the pandemic. Therefore, I had no way to tell if social effects of Emperor were there or not. Right now, though, the effects on my thinking are so obvious that I can’t almost even remember the type of person I was. Do some simp/beta male behaviors still creep in occasionally? Yes!!! But they don’t last.
My ambition has skyrocketed too. Self esteem and and confidence is on a different level. There is almost literally nothing I can’t do. How can I tell that I changed? I found myself doing consistently things that were absolutely scaring the living daylights out of me. Only a couple of months ago, I realized : “Oh sh.t! I’m doing this without thinking about it, and I have fun doing it! And I’m naturally dominant while doing it”. The old me wouldn’t have even tried.
I’m not making 6 figures yet in my business but I’ll be highly surprised if I’m not a millionaire in a couple of years. There is something in my brain that’s steering me that way. I’m looking at the house I live in and I’m thinking; “I don’t belong here! I deserve a better house in a better neighborhood”. I’m looking at the clothes I wear, the relationship that I have with my wife, the food I eat and I think “this is not befitting of a high value male or an Emperor”. Now compare that to the following. A year before I started running subs, I went to an open house that a local realtor organized. The house that he was selling was a million dollar house. In the state where I live, a million dollar house is actually very luxurious. So I went to visit the house and I felt completely out of place. My mind was screaming “You don’t belong here!!! This is too good for you!”. 
When the realtor asked me if I was in the market for a house like this, I said yes. But every cell in my body was saying “Boy, you’re lying!” 
That’s where I was mentally before I started running these subs. Emperor changed my frame of mind to the point where I feel that even that million dollar house might just be good enough. I DESERVE that or better. And I am actually making moves towards owning a house like that. How long will that take? I have no clue, but something in my mind is telling me that I am capable of making it happen sooner than later. Two or three years ago, I had no freaking idea how to even think of a credible plan to own something like that. And my mind was telling me that I don’t belong there anyway. That’s how much Emperor changed my identity and that’s why I’m still running it.
I am currently stacking Emperor with House of Medici, Wanted and Godlike Masculinity. I’m excited for what will happen next year if I run Emp + HoM + Wanted for a whole year. I remember @SaintSovereign saying that Emperor isn’t a tough sub in itself but it’s tough to master, that’s very true. Like I said earlier, some simp and beta male behaviors still surface from time to time but I am able to identify them fast and let them go because I don’t need them anymore.
If my opinion, Emperor is such a large and dense sub that it takes time of see clear effects (depending on where you start from). I’m in for the long haul anyway!