Tiels are awesome birds! We had 2 boys when I was little, Mario and Luigi, and they were sooo sweet and talkative I do remember that they were VERY loud though, they loved to hang out on top of their cage and talk to each other and anyone that passed by for a few hours a day... hence why I can't get another Tiel, having a baby brother xP

I also had a female, Lily, that we got from a breeder for my 10th Birthday. She was super pretty, but she was not well raised and was very scared of kids and being handled... so we gave her back to her breeder (who had waay too many birds, and probably didn't put much time at all into socializing her). Definitely check out that the breeder/store/rescue you get your Tiel from socializes them extremely well ~ you should be allowed to handle and get to know your birds before you buy them, to make sure they're social and healthy.