Duolingo is very clear and consistent in translating "Is maith liom" as "I like". There are at least half a dozen exercises translating "Is maith liom" from Irish to English, and every single one of them translates to "I like".
Is maith liom anraith. https://www.duolingo.com/comment/4282365
Is maith liom bágún https://www.duolingo.com/comment/4279739
Is maith liom gorm https://www.duolingo.com/comment/8331868
Is maith liom sciortaí https://www.duolingo.com/comment/5064530 Is maith liom cáca milis https://www.duolingo.com/comment/8202213
Is maith liom a bláth https://www.duolingo.com/comment/19269434
"I prefer" is "Is fearr liom".
"You prefer stew." - "Is fearr leat stobhach" https://www.duolingo.com/comment/5663930
If you're using Google Translate, your Irish isn't good enough to deal with the mistakes that Google Translate makes, so you shouldn't be using Google Translate.
Is maith liom is "I like", Is maith leis is "he likes". The preposition le is combined with the pronoun for the person that likes, as outlined in the Tips & Notes for the Food skill.
According to the translations here, is maith liom means i like. Could someone break it down for me because i dont understand what is maith is doing for the sentence and could someone tell me how to pronounce maith because I am not fully hearing it in this sentence i think. Thank you