I pass all the domains from my daily lists through Estibot .. it's a great tool for getting search data and other info. As for the actual estimated value .. it's still helpful .. but you absolutely need to take it with a grain of salt and be smart enough to know it's impossible for even a complex algorithm to fully understand the intricate complexity of language and keywords/terms and how they apply to end user demand for domains.
You also need to be particularly aware that it's virtually impossible for an algorithm to ever grasp the concept of a made up brandable. All things considered it does do an impressive job sometimes at guesstimating .. but you shouldn't be using estibot for that reason.
Where Estibot shines is relativity. Meaning that if you have a bunch of similar type names that give a certain value .. then you have another domain much higher or lower it sends a red flag for you to manually do a quick google check or something to see if you missed something good about it .. or on the other side if it spits out a $0 value it can often save you from buying a typo.
Seriously .. Estibot is a fantastic tool if you're realistic with what is actually possible and know how to use it .. and most certainly that is not the case when people just use it for one random domain (particularly brandables) and only look at the "Estimated value" .. there is a ton of useful data that comes with Estibot .. and it's an absolutely fantastic tool .. particularly if you understand what is and isn't logically possible to estimate when it comes to algorithms and how they could ever pertain to domains.
In this specific case it might have associated the acronym with "Ekonomski Fakultet Zagreb (Croatian: Faculty of Economics Zagreb
"
Which as an
END USER in education and economics could certainly have that value to them. (I wouldn't bet on it .. but again .. I used that number as a red flag to go check for more info ..
Estibot DID it's job)
It's important to see that the number that Estibot pops out is END USER pricing .. which for 4L .com's actually often can be in or near the 5 figure mark .. all those $xxx and low $xxxx comparables are mostly wholesale and auction pricing or even retail BIN pricing where the domain was priced to sell. If you download the full Estibot report it will also give a "wholesale value estimation" much smaller than that big number.
After everything above domainers also need to wake up to the fact that the biggest factor significantly more than anything else when it comes to domaining is LUCK .. pure and simple. Even the best domainers only sell a tiny fraction of their domains a year ... then add to that fact that maybe all a potential buyer has to spend is $5000 when the domain is clearly worth more .. and on the opposite side maybe a potential buyer is willing to spend way more than a domain is worth if faced with a particularly stubborn domainer. Where Estibot can truly help is helping you figure out domains relative to one an other .. and combined with very essential good judgement .. can maybe help you take your sales rate up from 2% to 2.5% .. or 3% to 4% .. and even more importantly .. it can often help you avoid domains that you shouldn't buy .. which can be very valuable in the long term.