I am wondering how the mainnet will compare to the testnet % rate.
I like piling on to my total for free. Testnet is running like a top for me.
If mainnet is this easy, I see a lot of people getting involved in the future!
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I see it the same way. Maybe the mainnet will be even more interesting. An epoch will last longer (5 days) but ADAs will be paid on your account. That means we have some kind of compound interest effect if you don’t sell your earnings. I don*t know if ROI will stay that high but i know It remains exciting 
In terms of delegation and its procedure, this will not change so much and remains easy just a few clicks and ticks…what will be more challenging for delegators though, is doing due diligence on what pool to delegate to and what pool they align with (pledge etc).
Several desirability parameters and functions haven’t yet been implemented on testnet, but will be present on mainnet. It’ll be an interesting development to see. I personally assume that current testnet rewards (ROI) are better (higher and somewhat more competitive) than what they will be on mainnet. Although, even during mainnet, it also depend heavily on the amount of ada staked, the pool’s desirability and fee/pledge structure.
To calculate possible ROI scenarios for yourself, or for a certain stakepool (condition) you can try and play around with this tool here: https://staking.cardano.org/en/calculator/
Enjoy! 
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That’s something that’s really strange to me. Desirability is a parameter which is defined in the paper
https://arxiv.org/pdf/1807.11218.pdf as an important input for the delegator. Instead Daedalus ITN shows a ranking based on pool performance which doesn’t reflect the desirability to a delegator. What happened at the beginning was that people believed in the ranking at Daedalus which lead to huge pools which were not desirable at all to the delegators. Obviously people don’t trust the Daedalus ranking any more but use “decentralised” tools like adapools.org or pooltool.io to get an idea to which pool they should delegate. And it seems that even with this missing or even misleading information in Daedalus, the testnet seems to run and the stake pool sizes level out. The question for me is, why is the desirability not included in Daedalus ITN. It should be no effort at all to have this parameter instead of pool performance for the ranking. Maybe it is some kind of test of robusness of the testnet? What happens if I give the players in the game not the information they expect? When will they learn and react?
Yes, they are insanely high. While my worst ROI was 0 (delegating to a pool which didn’t create a block during the epoch) and the second worst was around 3% (annualised to one year, I delegated to Rank 1 pool, which was a huge IOHK pool, well above saturation), I also had an ROI of around 30% annualized. I believe that during the epoch after I delegated to that pool, a whale (or at least dolphin) joined the pool so when at the end of the next epoch the amount of blocks were distributed, my pool received much more blocks to produce than what was to be expected during the time I delegated. I think that there is quite some element of luck / bad luck in the ROI per epoch right noch. But over time this should level out. Over all epochs right now I get an annualised ROI of around 13% p.a. which I think is incredibly high. I expected it to be more in the range of around 5% p.a. and decreasing over time.
The calculator seems to be not ok. If I play around with stake pool total stake then my ROI decreases when I delegate to a pool below 1% total stake and becomes constant for a pool above. According to the calculator I should join a huge pool for maximum gains. Interesting. Most people seem to delegate to smaller pools inspite of all the misinformation by IOHK.
If that’s all part of a robustness test of IOHK then I say “Chapeau!”, well done! It’s working! If not, then I’m wondering what happens here.
By the way: I wonder how many delegators still believe that the saturation point at the testnet right now is at 1%. Don’t believe in what people say. Check adapools.org and have a look at what where percentage the rewards start dropping from maximum amount.
You say "Several desirability parameters and functions haven’t yet been implemented on testnet, but will be present on mainnet. "
It is not clear to many of what factors are being considered. My performance shows a dismal 14% Even though I have made 29/31 slots over the past 5 epochs.
Could you show us a list of all of the known factors to be eventually considered along with those that are currently being considered? It would put a lot of speculation and concern aside.
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