Breakfast shakes in supermarkets

I'm curious to know if any of you tried using these or ever still use them, if for example you're short on time in the morning, or even during the day if you need it. I've seen Ensure, Carnation Instant Breakfast, and Glucerna as the main shakes that come in powders or bottles you can drink immediately.

I've tried Glucerna and CIB before and surprisingly they tasted fine to me, lol. Guess I was expecting worse! I didn't care much for Ensure though.
Anyway, my dad is diabetic so he has also had Glucerna before, I'm wondering if this could be an easy way to at least make Step 1 a habit and be more regular about it...I will love to hear your thoughts and suggestions! :h9)