There's just too many parts to clean with the anti-colic vent. Luckily, my son didn't have colic, and I know this had nothing to do with the bottle since we also have the Green to Grow brand (no anti-colic parts) and he's had no problems with that one.
You can't use this bottle without the anti-colic vent because it will leak.
I do like that you can just buy the sippy cup training nipple and handle separately and then use the bottle as a sippy cup. But again, you can't use it without the anti-colic vent.
If I had known better, I would have just gone with the Green to Grow all the way. |