May i know when should i transition my lo to a straw cup and what are the benefits? I read sippy cup is not recommended. which straw cup is recommended?

At 6 months when started solid and water, we let our girl use munchkins 360 miracle cup. Around 10-11months, started to introduce drinking with straw and straw cup. (We also read about sippy cup not recommended). By 12 months she uses straw cup to drink milk and water.