Here is my review:
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Now here are some screenshots of the FAST option
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------As much as already been reviewed and though I have not read them all, I have read some of the reviews in some parts therefore would not want to reiterate the functionality side of things as that has been covered extensively in the reviews here. I would like to review my overall experience and views after touching on the two types of options to mix on Whirlwind.
FASTThis was a simple process. I entered the withdrawal address and chose to receive the amount within zero hours. As expected, I received the funds in under 60 minutes.
NOTEAfter the amount was sent I withdrew the Note and chose to receive the amount within zero hours, which they did.
OVERALL VIEWSI used the service twice (once with Fast and once with Note options) with the minimum 0.001 BTC sent on both occasions. I also used the lowest 0.25% fee on both occasions.
This is an easy to navigate website, there is very little going on with regards to excessive hyperlinks and focus is mainly on the core aspect of the business (which is mixing). The letter of guarantee is made available to download. When sending funds, two confirmations are required before any mixing takes place.
The captcha is an essential part of stopping spam and bots flooding the website, I did not find this one a problem with the 5 characters but during one test of refreshing I am fairly sure I entered the characters correctly but it took four attempts before I finally was allowed to proceed. Not sure what happened there but most probably my error rather than software or configuration issues.
After I withdrew the funds, I tried to go back and try again to withdraw and already withdrawn amount (for testing purposes only and not with the intention of scamming) and the pop-up alerts with a notice can be seen in the images above.
One thing that I noticed was after the withdrawal takes place, it shows
Balance After Withdraw 0.00000001 BTC which gives the impression that the end user is owed 0.00000001 BTC (when that amount will be taken for the transaction fee) and it caused a little confusion. A quick attempt trying to withdraw again will show the pop-up alert above.
For the sake of testing functionality for this review, I should have withdrawn to several addresses but opted for one. Also, for both transactions I used Tor browser and found no issues with the settings on the strictest level.
Maybe I will revisit this review and update it if/when I re-test the Whirlwind service with multiple address withdrawals and by using clearnet. My review took place some time back but I posted the images and review just now when I had ample time.
POSSIBLE FUNCTIONALITY TO CONSIDERPossible improvements or nice-to-haves would include a system where a withdrawal Note can be used to withdraw a percentage of the full associated amount. Technically, it might not be too difficult to have a superseded letter of guarantee to accommodate the disparities between the deposited amount and withdrawn amounts but the Whirlwind owner will know if this is possible (or even feasible) or not.
It could also be useful for a user that has deposited funds at Whirlwind to enter the Note and then have an option to generate a second Note or several Notes for an amount from their balance which could then either be used to withdraw another time or to provide to someone else for example in the form of payment for goods or service or trade. If there is a demand for this sort of service it might be something for the Whirlwind owner to consider implementing one day.
Earlier, the website on Tor was accessible but the clearnet came back with this:
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BTC address: bc1qpx4galy9ejnj5tsvzpyqmhrg2y6sd8px2wlpvr