(Disclaimer: not a linguist, conlanger enthusiast) Turkish grammar is extremely regular. The only weird/non-regular thing in Turkish language is its past tense

(Disclaimer: not a linguist, conlanger enthusiast) Turkish grammar is extremely regular. The only weird/non-regular thing in Turkish language is its past tenses. Its past tenses are relatively complex and change suffix based on hear-say, story-telling, context, complaining, mood, fact etc... Hungarian and Turkish are similar only up to both being heavily agglutinating (as you know, they're not from the same language family). And its entirely possible English speakers find Hungarian harder than Turkish. Turkish phonology also isn't very complex. Stress is always in the same syllable. There are two very hard phonemes to pronounce: [ɰ] and [ɯ]. But overall Hungarian phonology is more sophisticated. Vowel harmony is very hard to learn. You cannot think about it as you speak, since it takes a lot of time and is used in every word. It has to be intuitive to you. So it makes sense that both Hungarian and Turkish are hard languages to learn.