A few months ago I used the site and it is very simple but effective when it comes to solving the captcha although there is something very important that should be highlighted, if in a given case you are wrong 10 times in a specific captcha, you can lose your account now that the web would take those errors as if you were a bot that is doing the work then the web will block it, and that is usually a bit tedious because there are some captchas that are very difficult to write so you can go wrong and lose your account said error and the worst thing is that there is no way to recover the lost account.