I've never been there but I'm curious: in which ways do you mean unattractive? As in the buildings/architecture/landscape is ugly? The pay there is low? Government services are lacking/corrupt? Something else?
Don't know why someone would complain about Estonia? Haven't lived there but visited quite many times. Tallinn has a dense old town. Pärnu is a laid back walkable summer city with a great beach. Saarenmaa is calm and quiet. For negatives, they do lack mountains, there aree large boring pine forest parts in the middle and there are still, after 30 years, a lot of Soviet era semi ruined buildings that make at least me sad. (Buildings can be even older but they were not maintained for the 40+ years of Soviet occupation.)
Cold (i dont think estonia is cold but whatever) > warm in times of global warming when you dont even have enough water to support nuclear reactors in France.
South Europe (outside south France) is probably worst place to live if you care about 10+ years window and plan or have kids.
You'll just let them out to live in 25% unemployment, high possibility of another immigration crisis and stagnant economy cause you prefere 40+ celsius over 25 in the middle of the day.