I was ranked 1st of all teams in Botswana after the first league round, that was one of the best achievements for me in Hattrick. Of course there's a lot of luck involved there, but hey, they're never going to be able to take that away!
What I like about the Hattrick community is that there are real people and you don't just compete against the computers. You play against each other, but you can also help each other in the forum and talk about everything.
One reason I play Hattrick is because I like the cyclical nature of the game. You start with an idea about what kind of team you want to build, then you train long-term (up to 3 years in real life!). While you build, you can test and try to comprehend the aspect of the match simulation that you want to master. I also like the tactical choices you have to make for each match. But the most important component is the community.
My biggest achievement in Hattrick so far is that I have won some titles with my second team in Bahrain and reached the semifinals of the National Cup in Italy, but I hope, a few months from now, that it will be winning the World Cup for the Italian NT.
What I like about the Hattrick community? Everything. I like all the help you can get in the forums about the game, but also for everything else it gives you in everyday life. Hattrick is my favorite social network.
When I registered, I liked that Hattrick has fantasy names instead of real players. That got me hooked. I also liked that all opponents were people of flesh and blood… and also that they turned out to be really helpful, showing me the steps you need to take as a new user to improve your team. Today, I am a good mentor myself.